My next few posts will deal with tagging on different social networking sites. This first tutorial will focus on Flickr.

In all the social networking sites that you might post to, there is something in common--tagging. Simply put, tags are little pieces of data that let people know what your information--whether it be an image, a video, or text--is about. For example, you could tag a picture of the castle in Warwick, UK on Flickr with "Warwick castle UK England" and when someone searched on these criteria would have the following results returned: