When you want to attract women online there are a few things you can do to make it easier for you to get more response.
Women are attracted to men that have many women around them. Take photos where you pose with pretty girls that have fun.
Try to look as high status as possible on the photos. Post status updates where you hang out with girls and try to do a lot fun stuff, women want to be with the fun cool guy.
Attracting women online is a numbers game, the more girls you have as friends the easier it will be to attract women.