One of the more difficult parts of putting together a modern application is what to do about tags. Alex Barnett breaks down the problem in his post about being in Tag-Hell. That is, what tag do I use to describe the data I want to find at a later time. Is it OS X or OSX or maybe even Macintosh. All will give you something different from a search engine like Technorati but in reality there are almost the same thing.
One of his possible solutions is to display a tag count which gives some social feedback to the user as to which tag to choose. It might be tag instead of tags on Technorati but maybe the other way around on del.icio.us. The feedback can only help the user feel more comfortable with their choice.
Technorati Tags: tags, taghell