Have just done the searches on Technorati for Learning 2.0. Using the keyword search function we found different results for blog posts and tags. There were more results for tags, about 750, than for blog posts, about 550.

Technorati is a good website to find the 100 most popular blogs, the most popular blog subjects and just fun to have a look around at other people's blogs. You could spend a lot of time looking at the website and lots of blogs!