Ed, PE5ED and Wijn are developing a project called the IARL. They are trying to collect as much data as they can on repeaters and beacons. This will be freely available via the website and also through an app for smartphones.
They already have quite a lot of information for western Europe though I have already spotted a couple of errors relating to local repeaters. If you can help with corrections or sources of data they would like to hear from you.