The good people of Wargames, Soldiers and Strategy are running their Great Wargaming Survey again! On top of participating in this ever interesting project which last year gave us a very interesting and in parts surprising overview of wargaming world wide as well as getting a free voucher for Karawansaray's online store, you can even win stuff this year. So I can't see any reasons not to participate! Remember, the more people take part the more sound the results will be.
For a look at the results of last year's survey, have a look here.