Feedcat is a site where feeds are catalogued and promoted. Both RSS and Atom feeds make up the existing database (over 120,000 feeds and counting), and the site is entirely free and public – just anybody can submit a feed of his own to the site, and it will be duly featured.
This is a great way to get the word out on what you do, of course, and also of giving recognition to any site (or blog) that you have chanced upon and that ended up either entertaining you a lot, or helping you tackle any assignment that you had to face.
Moreover, you can add a Feedcat button to your site and let people subscribe to your RSS feed right away, as well as letting them share your site on social bookmarking services (IE Digg, Delicious, Mixx…)
It is important to mention it once more: all of these services are provided at no cost, and they are public services by definition – you don’t even need to register in order to take advantage of any of the functionalities that were described in the two foregoing paragraphs.
Feedcat.net In Their Own Words
“Feed Button and Feed Cache in One.”
Why Feedcat.net It Might Be A Killer
The site is a true repository of the best feeds on the WWW, and the provided button makes promoting any site (or blog) a much suppler task.
Some Questions About Feedcat.net
How many new feeds are added each week to the database? 
