* RSS is awesome
* OP wrote an "RSS Discovery Engine"[1] that
"[...]works by taking the URL to a blog, or any site with an RSS feed, and examining all the posts in the blog’s RSS feed for links to other sites. When a link to another site is found, it’s inspected to see if it also has an RSS feed. If the new site has an RSS feed, then it’s added to the results list.[...]"