MagpieRSS
MagpieRSS is an RSS parser that uses PHP's built in XML parser, for better support and flexibility. Supports all version of RSS, including namespaces and RSS 1.0 modules. Has a simple to use functional interface, and integrated cache system. Is Last-Modified, and ETag aware. Optionally use HTT gzip encoding. Now with better examples, Smarty integration, and a cookbook.