People visit and post to blogs all over the Internet about any and every subject that they are interested in and the owners of these blogs have figured out that they can make their blogs very, very profitable indeed. Social Bookmarking: Social bookmarking is more or less a by-product of blogging but it is based on the same basic technology. Social bookmarking sites such as Delicious, allow their users to upload their own favorite site bookmarks so that everybody else in the world can see and use those bookmarks. When a user uploads his favorite site bookmarks into his online account, a backlink is created to that site. When enough people click on the link, the site that has been book marked gets indexed and gains a rank by search engines. It is a form of user driven advertisements that is far more successful than any kind of paid-for advertising can ever be.
There are a great many social bookmarking sites on the Internet now and new software is being developed all the time that makes these sites more and more productive as advertising tools and traffic driving tools. Wiki: A short definition of Wiki is “Wiki is a piece of server software that allows users to freely create and edit Web page content using any Web browser. Wiki supports hyperlinks and has a simple text syntax for creating new pages and crosslinks between internal pages on the fly.” In short Wiki technology allows editing of material posted on a website by the poster or by others. The best example of Wiki technology is action on the Internet is Wikipedia. In the old Web 1.0 way to doing things the owner of a website had full control over all material that was posted to the website and only website owners could edit material posted on the website.