In case you missed it from my linklog, there’s a nice series of posts over at Alex Faaborg’s blog about microformats and the reasoning behind a new extension called Operator. The posts:

An introduction to microformats and some related links. Also some information on why they are useful.

Discusses one of the problems with RSS: lots of labels and buttons, and the eventual change with browsers agreeing on a set of icons. Right now other data such as events and contact information also has this problem:

What formats should be supported and how they are connected.