PUBLIC MARKS with tags syndication & aggregator

Blogdigger Groups allows you to combine the contents of two or more blogs making the combined content easily accessible all at once. You can create a Blogdigger Group using any blogs that have RSS feeds. Once you specify the feeds that comprise your Blogdigger Group you will be able to view the posts from those feeds, sorted by date, and even export your group in OPML or OCS, or subscribe to your Blogdigger Group as an RSS feed.

is a simple but powerful news aggregator written in PHP. No database is needed, RSS/ATOM parsing is done by the excelent MagpieRSS library (it is included, no additional installation needed). It features feed auto-discovery and an easy-to-use interface.

a php planet