Easy Feed integrations for PHP – SimplePie is a code library which gives you an easy to use OO API for feeds. It allows easy merging of feeds from multiple sources. This API handles all of the hard work for fetching, caching, parsing, normalizing data between RSS and Atom formats, handling character encoding and sanitizing the feed data.

I’ve setup a sample lifefeed from various services I’m on, using SimplePie and some of their demo code over at webfeed.vinuthomas.com

Links:
SimplePie Home Page
Download SimplePie
SimplePie Documentation