Just noticed a friend of mine on FB put "I love Southwest!" with an ad for 'Free Southwest Tickets'. I clicked on it and it took me to a page that requested that I post the same on my status using their FB control panel (did not return me to FB) and I'd be eligible for free tickets. I didn't see a CPA kind of offer there. Any idea how this is working?
No, it's really old, it's just a way of spreading their information over Facebook, this has been done by Apps for years.