BlogBridge is a news feed and blog aggregation system. Not only will BlogBridge let you subscribe to your favorite RSS feeds, it will also help you sort through your existing feeds and help you discover new feeds.
It also comes with a server-based service that will let you synchronize all your feeds across multiple computers, and even maintain your read/unread status across those computers.

Feeds:

Subscribe from url and from drag and drop
Suggested list of Feeds
BlogStarz Recommendations and Ratings
Sort Feeds by BlogStarz, Unread, Keyword matches
Filter Feeds by BlogStarz, Unread, Keyword matches
Community info: Country and other community tags
Article purge limit
Articles:
Keyword highlighting
Undiscovered and Discovered Feed highlighting
Unread handling: go to next unread, mark all as read, etc.
View Article: Full, Brief and Headline only
Show Articles: All, Unread only, and Keyword matching only
Analyze URL to locate the associated Feed
Group articles by date
Guides:
Drag and Drop
Suggested Feeds
Customized Icons
BlogBridge Community Service:
Synchronize subscriptions and preferences between multiple computers
Synch Now, Only Load and Only save options
Support Feed discovery and caching
Rich text and graphics display
Import and Export to OPML
Settable Keywords, external browser, UI Themes
Automatic mark as read options
Customizable BlogStarz weights