I was at wal-mart today and I saw these bellasara cards. I went to their website and it looks really cute. You have to buy cards to get horses and do other things in their world. I didn't make an account, but maybe you have a little sister or someone who likes horses who might like to look at this.
I read the press report and these cards are from the developers that make pokemon and magic the gathering cards. So they are developing trading cards for girls now, and everyone knows girls like ponies.
http://www.bellasara.com/getstarted.aspx