All FLARM-equipped gliders in the range of receivers are here: http://live.glidernet.org. Southern Ontario does not yet have an internet-connected ground-based FLARM receiver.
If you have a SPOT, InReach or use Google Latitude on an Android cellphone, and you'd like to be listed on this page, please let me know.
A much larger list is available at http://www.ssa.org/SailplaneLocator.