Last night I went along for the first time to
London Wiki Wednesday and found it very interesting. A good group of Wiki veterans and real users turned up (around 50) and debated about general social and community uses of the Wiki tool (probably true about all community tools). However it did go on for way too long and I didnt really get to meet anyone and left around 10ish just to get home. It is well worth going to if you are a Wiki nut or interested in how Wiki's can be used by communities.