Here's one I like: learning.weblogger.com at first glance........and this one is a very up-to-date words, stories, topics of bloggers website according to a Yahoo article: http://www.daypop.com/burst/

The Harvard site referenced below mentions this blog of blogs.......http://www.weblogs.com/
I guess if you have nothing else to do, you could read through these forever (the list is constantly updated).

I, on the other hand, have to make a spread sheet for our school's recent fund raiser for St. Jude's Research Hospital......

More and more articles on blogs are starting to show up.....or maybe it's that old principle: learn a new word and all of a sudden it's everywhere you look.....
Here's one that helps explain the blog phenomena.....in a Harvard kinda way......http://blogs.law.harvard.edu/about