This is just a quick entry, Technorati have come up with a Cool REST API. http://developers.technorati.com/wiki/BlogPostTags
The API, lets a developer display all the tags that a particular site has created. It is pretty cool because it lets me see that some of the issues I have been having have been resolved.
Check out http://www.kinlan.co.uk/cgi-bin/SiteInfo.pl
if you want to see all the tags I have used. It is a really simple API to use, and includes some basic stats about the tag (the number of times they been used). I can see how I can use this already in my next application, I am made up.
It is simple little API's like this that I like! Keep up the good work Technorati!