Introduction to del.icio.us

In an earlier post "How to do categories" a simple method was described using del.icio.us as a workaround for doing categories for Blogger. However, a reader has indicated that she is not familiar with del.icio.us tagging system. That is the reason for this post.Del.icio.us is a popular online public bookmarking system that is now owned by Yahoo and is a big improvement over the conventional