Web 2.0 is bringing some drastic change in the way we use the web. Previously we used to read web for news, information but now the air is different. This whole new era of uploading has come up, in which web users not only read but write web, users collaborate with others as there is no other day. In this era, web emerged as a new avatar, where each user can share knowledge and interact with others of similar interest or expertise. Truly web with this new Web 2.0 revolution has become a place where each individual has voice and space and he/she can collaborate or participate with the global audience.
This change is made possible by some new and innovative technologies and services.
- Wikipedia, the online encyclopedia has emerged as one of the force to bring this change. It is the example of Wiki System, which allows users to freely create and edit Web page content using any Web browser. Wiki supports hyperlinks and has simple text syntax for creating new pages and crosslinkâs between internal pages on the fly.
- Blog, another major component of Web 2.0, (as per WordPress definition) is a term used to describe web sites that maintain an ongoing chronicle of information. A blog is a frequently updated, personal website featuring diary-type commentary and links to articles on other Web sites. Blogs range from the personal to the political, and can focus on one narrow subject or a whole range of subjects.
This is the personal space of an user from which he/she can express ideas and opinion - Instant Messaging, also called chat, is one-to-one or text based group collaboration. Unlike email which has established a more of formal way of communication, chat is more of informal channel of communication.
- RSS, based on the philosophy of pushing content to users in the form of feeds, so that all the users who are subscribed to a particular feed can read the associated information. RSS makes it possible for people to keep up with their favorite web sites in an automated manner that’s easier than checking them manually.
- Content Repository, is defined as “a high-level information management system that is a superset of traditional data repositories, implements ‘content services’ such as: author based versioning, full textual searching, fine grained access control, content categorization and content event monitoring.”
- Federated Search, is a search engine which searches on multiple different systems like file system, web (internet/intranet), database, content repository etc. It provides facetted search result.