Time Travel discussion

I'm sure alternatehistory.com is familiar to a lot of people interested in the alternate history genre, but it does also have quite a lot of time travel threads, usually of the sort where some party is displaced into the past with no way back. Some of them are excellent reads and a couple have even spawned books. My favourite 'displacement' has to be 'Arose From the Azure Main' in which the UK of 1980 is sent back to 1730 and Margaret Thatcher has to deal with 18th Century Europe. Would definitely recommend it, especially as it has a story only thread to make it easier to follow.