J.L.
I did and I thought it was a waste because while you need to solicit friends and family to vote...you or they could vote multiple times if you moved from computer to computer. Not fair in my opinion. If you want to do this sort of thing, look for where you can only submit one vote per entry or a contest where it is judged by judges only. Otherwise, someone who has access to multiple computers, laptops, netbook, Ipad could vote several times for the same photo...in a day.