Co-op - Find interesting things to do with like-minded people
Gabbermap - Gabbermap is a map-based message board for every place on earth, spotlighting the weird, hidden...
Activities Mapper - Find things to do, eat, and drink near you in London
BarTrendr - Your personal, private, social network for going out
Interests - Explore your interests
Mapme - Build smart and beautiful maps within minutes with no coding.