I've just starting out developing using Feeds, and have so far used Google JavaScript Feed API to get RSS feeds into my web application.
I was wondering what other types of feed api are available for free consumption.
Also if you have any great feeds you would recommend (available through RSS or otherwise - including custom feeds), please let me know.
I am using MooTools for most of my front end development and .NET/C#/WCF services for the backend, but am not tied to these technologies.
Thanks