Omea Reader is an easy to use, all-in-one RSS/ATOM feed reader, newsgroup reader, and web bookmark manager. But what really makes it unique is the level of information organization and management features including lightning-fast searches, flexible filing, contextual access, and extensibility.

Link
http://www.jetbrains.com/omea_reader/index.html

Get License for Omea Reader
http://www.jetbrains.com/forms/omea_reader/download/license

"As a limited time offer valid until January 1, 2005, you can get a permanent license key for Omea Reader for free. Just fill a simple registration form, and we will e-mail the key to you."

Sem dúvida uma excelente "tool" ;P