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For many Flash  designers, the single greatest challenge to understanding accessibility is how to best appreciate the experience of people with disabilities. A web designer’s inherent talent is an ability to perceive the world in a unique visual way. The skill of the web designer allows her to view, conceptualize and translate visual information into layout and graphics. This is a fundamental and powerful way of seeing and understanding the world that should not be taken for granted. To understand accessibility and implement it in practice is to ask designers to set their visual skills aside. The first thing to do when addressing accessibility is to step outside of our frame of reference and consider the perspective of users with disabilities. Key questions, such as the following, arise: What are the specific issues that prevent users from accessing content? What are the tools used by people with disabilities to navigate the Internet? What techniques and interfaces are used to make working with the web easier? Dallas Website Design will explain you how.

Website accessibility can be broadly described as the capacity of any user, regardless of disability, to access the same content and information. With regard to accessible Flash web content, obstacles for users with disabilities have two sources: issues of design; or issues of assistive technologies like Dallas Website Design has.

Developers creating accessible Flash must meet the following minimum requirements:

- Macromedia Flash Player 6 or later

- Windows 98, 2000 or XP

- Microsoft Internet Explorer 5 or later

- Screen readers:

- GW Micro Window Eyes 4.2 or later

- Freedom Scientific JAWS 4.5, 6.1 or later

- IBM Home Page Reader 3.04

- Dolphin HAL 6.50

- KDS PC Talker (Japan)

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There have been several attempts to create a unified standard for instant messaging: IETF’s SIP (Session Initiation Protocol) and SIMPLE (SIP for Instant Messaging and Presence Leveraging Extensions), APEX (Application Exchange), Prim (Presence and Instant Messaging Protocol), the open XML-based XMPP (Extensible Messaging and Presence Protocol), and OMA’s (Open Mobile Alliance) IMPS (Instant Messaging and Presence Service) created specifically for mobile devices.

Most attempts at creating a unified standard for the major IM providers (AOL, Yahoo! and Microsoft) have failed, and each continues to use its own proprietary protocol for live chat /chatiquette. Live chat is part of live support system on the internet that needs unique live chat software.

However, while discussions at IETF were stalled, Reuters signed the first inter-service provider connectivity agreement on September 2003. This agreement enabled AIM, ICQ and MSN Messenger users to talk with Reuters Messaging counterparts and vice-versa. Following this, Microsoft, Yahoo! and AOL came to a deal where Microsoft’s Live Communication Server 2005 users would also have the possibility to talk to public instant messaging users. This deal established SIP/SIMPLE as a standard for protocol interoperability and established a connectivity fee for accessing public instant messaging clouds. Separately, on October 13, 2005 Microsoft and Yahoo! announced that by the 3rd quarter of 2006 they would interoperate using SIP/SIMPLE which was followed on December 2005 by the AOL and Google strategic partnership deal where Google Talk users would be able to talk with AIM and ICQ users provided they have an AIM account.

There are two ways to combine the many disparate protocols:

1. One way is to combine the many disparate protocols inside the IM client application.

2. The other way is to combine the many disparate protocols inside the IM server application. This approach moves the task of communicating to the other services to the server. Clients need not know or care about other IM protocols. For example, LCS 2005 Public IM Connectivity. This approach is popular in XMPP servers; however, the so-called transport projects suffer the same reverse engineering difficulties as any other project involved with closed protocols or formats.

Many large companies who are not internet service providers also need a computer permanently connected to the web so they can send email, files, etc. to other sites. They may also use the computer as a website host so they can provide details of their goods and services to anyone interested. Additionally these people may decide to place online orders.

* Free web hosting service: offered by different companies with limited services, sometimes supported by advertisements, and often limited when compared to paid hosting.

* Shared webhosting service: one’s website is placed on the same server as many other sites, ranging from a few to hundreds or thousands. Typically, all domains may share a common pool of server resources, such as RAM and the CPU. The features available with this type of service can be quite extensive. A shared website may be hosted with a reseller.

* Reseller web hosting: allows clients to become web hosts themselves. Resellers could function, for individual domains, under any combination of these listed types of hosting, depending on who they are affiliated with as a provider. Resellers’ accounts may vary tremendously in size: they may have their own virtual dedicated server to a collocated server. Many resellers provide a nearly identical service to their provider’s shared hosting plan and provide the technical support themselves.

* Virtual Dedicated Server: also known as a Virtual Private Server (VPS), divides server resources into virtual servers, where resources can be allocated in a way that does not directly reflect the underlying hardware. VPS will often be allocated resources based on a one server to many VPSs relationship, however virtualisation may be done for a number of reasons, including the ability to move a VPS container between servers. The users may have root access to their own virtual space. Customers are sometimes responsible for patching and maintaining the server.

* Dedicated hosting service: the user gets his or her own Web server and gains full control over it (root access for Linux/administrator access for Windows); however, the user typically does not own the server. Another type of Dedicated hosting is Self-Managed or Unmanaged. This is usually the least expensive for Dedicated plans. The user has full administrative access to the box, which means the client is responsible for the security and maintenance of his own dedicated box.

* Managed hosting service: the user gets his or her own Web server but is not allowed full control over it (root access for Linux/administrator access for Windows); however, they are allowed to manage their data via FTP or other remote management tools. The user is disallowed full control so that the provider can guarantee quality of service by not allowing the user to modify the server or potentially create configuration problems. The user typically does not own the server. The server is leased to the client.

* Colocation web hosting service: similar to the dedicated web hosting service, but the user owns the colo server; the hosting company provides physical space that the server takes up and takes care of the server. This is the most powerful and expensive type of web hosting service. In most cases, the colocation provider may provide little to no support directly for their client’s machine, providing only the electrical, Internet access, and storage facilities for the server. In most cases for colo, the client would have his own administrator visit the data center on site to do any hardware upgrades or changes.

* Cloud Hosting: is a new type of hosting platform that allows customers powerful, scalable and reliable hosting based on clustered load-balanced servers and utility billing. Removing single-point of failures and allowing customers to pay for only what they use versus what they could use.

* Clustered hosting: having multiple servers hosting the same content for better resource utilization. Clustered Servers are a perfect solution for high-availability dedicated hosting, or creating a scalable web hosting solution. A cluster may separate web serving from database hosting capability.

* Grid hosting: this form of distributed hosting is when a server cluster acts like a grid and is composed of multiple nodes.

* Home server: usually a single machine placed in a private residence can be used to host one or more web sites from a usually consumer-grade broadband connection. These can be purpose-built machines or more commonly old PCs. Some ISPs actively attempt to block home servers by disallowing incoming requests to TCP port 80 of the user’s connection and by refusing to provide static IP addresses. A common way to attain a reliable DNS hostname is by creating an account with a dynamic DNS service. A dynamic DNS service will automatically change the IP address that a URL points to when the IP address changes.

Some specific types of hosting provided by web site  hosting service providers:

* File hosting service: hosts files, not web pages

* Image hosting service

* Video hosting service

* Blog hosting service

* One-click hosting

* Pastebin Hosts text snippets

* Shopping cart software

* E-mail hosting service

Search engine optimization (SEO) is the process of improving the volume or quality of traffic to a web site or a web page (such as a blog) from search engines via “natural” or un-paid (“organic” or “algorithmic”) search results as opposed to other forms of search engine marketing (SEM) which may deal with paid inclusion. The theory is that the earlier (or higher) a site appears in the search results list, the more visitors it will receive from the search engine. SEO may target different kinds of search, including image search, local search, video search and industry-specific vertical search engines. This gives a web site web presence.

As an Internet marketing strategy, SEO considers how search engines work and what people search for. Optimizing a website primarily involves editing its content and HTML and associated coding to both increase its relevance to specific keywords and to remove barriers to the indexing activities of search engines.

The acronym “SEO” can refer to “search engine optimizers,” a term adopted by an industry of consultants who carry out optimization projects on behalf of clients, and by employees who perform SEO services in-house. Search engine optimizers may offer SEO as a stand-alone service or as a part of a broader marketing campaign. Because effective SEO may require changes to the HTML source code of a site, SEO tactics may be incorporated into web site development and design. The term “search engine friendly” may be used to describe web site designs, menus, content management systems, images, videos, shopping carts, and other elements that have been optimized for the purpose of search engine exposure.

Another class of techniques, known as black hat SEO or spamdexing, uses methods such as link farms, keyword stuffing and article spinning that degrade both the relevance of search results and the user-experience of search engines. Search engines look for sites that employ these techniques in order to remove them from their indices.

Optimization techniques are highly tuned to the dominant search engines in the target market. The search engines’ market shares vary from market to market, as does competition. In 2003, Danny Sullivan stated that Google represented about 75% of all searches. In markets outside the United States, Google’s share is often larger, and Google remains the dominant search engine worldwide as of 2007. As of 2006, Google had an 85-90% market share in Germany. While there were hundreds of SEO firms in the US at that time, there were only about five in Germany. As of June 2008, the marketshare of Google in the UK was close to 90% according to Hitwise. That market share is achieved in a number of countries.

As of 2009, there are only a few large markets where Google is not the leading search engine. In most cases, when Google is not leading in a given market, it is lagging behind a local player. The most notable markets where this is the case are China, Japan, South Korea, Russia and the Czech Republic where respectively Baidu, Yahoo! Japan, Naver, Yandex and Seznam are market leaders.

Successful search optimization for international markets may require professional translation of web pages, registration of a domain name with a top level domain in the target market, and website hosting that provides a local IP address. Otherwise, the fundamental elements of search optimization are essentially the same, regardless of language.  Before you Buy or rent a webhosting you must see web hosting rating at the webmaster forum or other hosting review.

The primary function of an email archiving system is to extract message contents and attachments from incoming and outgoing emails. It indexes them and stores them in a read-only format, which ensures that they are recorded and maintained in their original state. One of the benefits of archiving emails is that it creates more space on the mail server. Emails are stored in a compressed format, which saves a huge amount of disk space for users and companies. Emails can be requested as evidence in a court of law. They must be in their original state and the records must be as complete as possible. This could entail the presentation of hundreds or thousands of emails in court. Searching for all relevant emails that aren’t archived but are merely saved on a back-up system takes time and costs money.

As over 70% of emails is spam, everyone across the board find themselves in a quandary. This means for every gigabyte of email storage, 700 Megabytes is pure junk. This creates an instant data storage problem and also weighs down in infrastructure capacity. Most companies in an effort to be email archiving compliant just store everything that comes across their network based on the assumption that the data has been filtered. Moreover, it is important to implement as much filtering of emails before it even hits your mail servers. This way, much of the junk is eliminated. This means the data that arrives on your mail server is post processed..i.e, cleaned up before arrival. Furthermore, with the ever sophisticated manner with which embedded malicious code is hidden in image files, links, attachments etc, all the end use needs to do is open up the email. You don’t even have to click on a link for the script to be executed. However, if the email has been checked for any “abnormalities”, then the propensity for problems is immensely reduced if not eliminated.

There is a new industry emerging in this area of technology, Managed Services. In a nutshell, your emails hit the service providers systems and is cleaned up before it hits your mail servers. This way, the provider takes the hit first. This process usually takes less than 2 seconds. An email insurance policy of sorts in tech jargon. Organizations need to thoroughly evaluate their data storage needs, classify their data and determine their tolerance level regarding email archiving before determining which solution fits their needs.