eReserve is a free, open-source reservation system. Its open nature allows it to be adapted for use in any type of organization, from television stations to technical support groups to community clubs. eReserve is currently released under the GNU Public License
The software is currently designed for Windows platforms, but its client/server nature allows easy portability between operating systems. An eventual linux server is being planned for release sometime in the months following the completion of development of eReserve 2.0 Final.
Though not yet in a final release, eReserve has proven its stability through its use in a University Television Station for 9 hours a day, 5 days a week for the past year. And that's just in its pre-beta stage.
If you are interested in learning more about the software, or giving it a try in its current state, but don't have the time to wait for the completion of this site, eMail me at rbarnard@elon.edu, and I'll be happy to try and help.