fernando_graphicos has a nice tutorial on styling your WordPress RSS Feed.

How your blog will get discovered via Scoble

Simon Willison discusses how to implement Plinks into your weblog. Plinks are permanent links attached to each paragraph giving the ability for bloggers to link directly to a specific paragraph in addition/instead of a permalink to the entire article. The author implements Plinks using JavaScript. Apparently some think Plinks are a bad idea.