Beagle is a search tool that ransacks your personal information space to find whatever you're looking for.
More technically, Beagle is a Linux desktop-independent service which transparently and unobtrusively indexes your data in real-time. Beagle supports many different data sources and file formats. To learn more about Beagle, visit http://beagle-project.org.
We are a fairly small group of hackers working on making desktop search 'Just Work' for Linux desktop users. Beagle has been around for nearly three years, and ships with most Linux distributions, including Novell's SUSE-based distributions, Fedora, Ubuntu, Gentoo, and many others.