I noticed this site www.foxysingapore.com is giving away free $10 Taka vouchers for women who sign up. Looks like a photo rating site. So far I can see there are som guys signed up but no women. They are trying to attract females I think and are therefore making the offer. I read about the site and it looks like the guys can only contact you through the site and not directly (so you can don't have to worry about being bothered with someone you can't be bothered with). Mostly seems to be a site where you can find out what others think about what your photo looks like.
-Emily