Web 2.0

Present state of the Web
  is more like a big group of friends and acquaintances. Users can still use it to receive information but they also can contribute to the conversation and make it a richer experience. During the initial formation of the  , or Web 1.0, users were limited to passive viewing of online content. The term   was coined in 1999 by   as people became increasingly able to interact and cooperate online through  ,  ,and user-generated content. Some examples include  ,  <span style="line-height:22px;font-size:15px;font-family:Arial;color:rgb(0,0,0);white-space:pre-wrap;">, <span style="font-size:15px;font-family:Arial;color:rgb(0,0,0);white-space:pre-wrap;"> <span style="line-height:22px;font-size:15px;font-family:Arial;color:rgb(0,0,0);white-space:pre-wrap;">, <span style="font-size:15px;font-family:Arial;color:rgb(0,0,0);white-space:pre-wrap;"> <span style="line-height:22px;font-size:15px;font-family:Arial;color:rgb(0,0,0);white-space:pre-wrap;">, and <span style="font-size:15px;font-family:Arial;color:rgb(0,0,0);white-space:pre-wrap;"> <span style="line-height:22px;font-size:15px;font-family:Arial;color:rgb(0,0,0);white-space:pre-wrap;">. <span style="font-size:15px;font-family:Arial;color:rgb(0,0,0);white-space:pre-wrap;"> <span style="line-height:22px;font-size:15px;font-family:Arial;color:rgb(0,0,0);white-space:pre-wrap;"> technologies encompass a variety of different meanings that include an increased emphasis on user generated content, data and content sharing, collaborative effort, new ways of interacting with Web-based applications, and the use of the Web as a social platform for generating, repositioning and consuming content. <span style="font-size:15px;font-family:Arial;color:rgb(0,0,0);white-space:pre-wrap;"> <span style="line-height:22px;font-size:15px;font-family:Arial;color:rgb(0,0,0);white-space:pre-wrap;"> refers to a perceived second generation of Web development and design that facilitates communications and secures information sharing, interoperability, and collaboration on the World Wide Web. <span style="font-size:15px;font-family:Arial;color:rgb(0,0,0);white-space:pre-wrap;"> <span style="line-height:22px;font-size:15px;font-family:Arial;color:rgb(0,0,0);white-space:pre-wrap;"> concepts have led to the development and evolution of Web-based communities, hosted services, and applications; such as <span style="font-size:15px;font-family:Arial;color:rgb(0,0,0);white-space:pre-wrap;"> <span style="line-height:22px;font-size:15px;font-family:Arial;color:rgb(0,0,0);white-space:pre-wrap;">, video-sharing sites, <span style="font-size:15px;font-family:Arial;color:rgb(0,0,0);white-space:pre-wrap;"> <span style="line-height:22px;font-size:15px;font-family:Arial;color:rgb(0,0,0);white-space:pre-wrap;">, <span style="font-size:15px;font-family:Arial;color:rgb(0,0,0);white-space:pre-wrap;"> <span style="line-height:22px;font-size:15px;font-family:Arial;color:rgb(0,0,0);white-space:pre-wrap;">, and folksonomies ". The emphasis on user participation also known as the "Read/Write" Web - characterizes most people's definitions of <span style="font-size:15px;font-family:Arial;color:rgb(0,0,0);white-space:pre-wrap;"> <span style="line-height:22px;font-size:15px;font-family:Arial;color:rgb(0,0,0);white-space:pre-wrap;">.

Characteristics of Web 2.0

 * <span style="color:rgb(0,0,0);font-family:Arial;font-size:15px;white-space:pre-wrap;line-height:1.4em;">Users are able to make changes and contribute to Web pages. For example, Amazon allows visitors to post product reviews. Using an online form, a visitor can add information to Amazon's pages that future visitors will be able to read.


 * <span style="color:rgb(0,0,0);font-family:Arial;font-size:15px;white-space:pre-wrap;line-height:1.4em;">Users can link to other users. <span style="font-size:15px;font-family:Arial;color:rgb(0,0,0);white-space:pre-wrap;"> such as Facebook and MySpace are popular in part because they make it easy for users to find each other and keep in touch.


 * <span style="color:rgb(0,0,0);font-family:Arial;font-size:15px;white-space:pre-wrap;line-height:1.4em;">There are fast and efficient ways to share content. For example, a YouTube member can create a video and upload it to the site for others to watch in less than an hour.


 * <span style="color:rgb(0,0,0);font-family:Arial;font-size:15px;white-space:pre-wrap;line-height:1.4em;">There is streaming information. Currently, internet surfers can subscribe to a Web page's Really Simple Syndication (RSS) feeds and receive notifications of that Web page's updates as long as they maintain an Internet connection.


 * <span style="color:rgb(0,0,0);font-family:Arial;font-size:15px;white-space:pre-wrap;line-height:1.4em;">Internet access has expanded beyond the computer. Many people access the Internet through devices such as cell phones or video game consoles; before long, some experts expect that consumers will access the Internet through television sets and other devices.

Current Problems with Web 2.0
<span style="color:rgb(0,0,0);font-family:Arial;font-size:15px;white-space:pre-wrap;line-height:1.4em;">1) <span style="font-size:15px;font-family:Arial;color:rgb(0,0,0);white-space:pre-wrap;"> <span style="line-height:22px;font-size:15px;font-family:Arial;color:rgb(0,0,0);white-space:pre-wrap;">. The most relevant pages are retrieved, but so are many other irrelevant or semi-relevant pages.

<span style="color:rgb(0,0,0);font-family:Arial;font-size:15px;white-space:pre-wrap;line-height:1.4em;">2) <span style="font-size:15px;font-family:Arial;color:rgb(0,0,0);white-space:pre-wrap;"> <span style="line-height:22px;font-size:15px;font-family:Arial;color:rgb(0,0,0);white-space:pre-wrap;">: Sometimes we don’t get the answer we want at all.

<span style="color:rgb(0,0,0);font-family:Arial;font-size:15px;white-space:pre-wrap;line-height:1.4em;">3) Search results are too vocabulary-sensitive: Semantically similar words do not return similar results.

<span style="color:rgb(0,0,0);font-family:Arial;font-size:15px;white-space:pre-wrap;line-height:1.4em;">4) Search results return only single Web pages. Users must travel to separate places, extract information, then bring together a solid body of information. This requires several queries.

<span style="color:rgb(0,0,0);font-family:Arial;font-size:15px;white-space:pre-wrap;line-height:1.4em;">5) <span style="font-size:15px;font-family:Arial;color:rgb(0,0,0);white-space:pre-wrap;"> <span style="line-height:22px;font-size:15px;font-family:Arial;color:rgb(0,0,0);white-space:pre-wrap;"> are not integrated with software; they often stand isolated.

<span style="color:rgb(0,0,0);font-family:Arial;font-size:15px;white-space:pre-wrap;line-height:1.4em;">"Therefore the term <span style="font-size:15px;font-family:Arial;color:rgb(0,0,0);white-space:pre-wrap;"> <span style="line-height:22px;font-size:15px;font-family:Arial;color:rgb(0,0,0);white-space:pre-wrap;">, used in assocation with search engines, is somewhat midleading; location finder might be a more appropriate term." The <span style="font-size:15px;font-family:Arial;color:rgb(0,0,0);white-space:pre-wrap;"> <span style="line-height:22px;font-size:15px;font-family:Arial;color:rgb(0,0,0);white-space:pre-wrap;"> behind what information we with to retrieve is "not machine-accessible." The computer cannot interpret sentences the way humans can, and developers feel that there is a need for relationships between data to be established that are more conducive for human needs.