Those who were making some handsome cash with AdSense referral, bad news for them is AdSense Referrals were retired at the end of August 2008. But while closing down one Goggle did open up to new dimension to publishers by starting to offer AdSense for feed. But hey there is more, Google just announced a public beta for AdSense for Games. Yes that’s right beta users of AdSense can display video ads, image ads, or text ads within online games to earn revenue. They’ll be able to show these ads in placements they define, such as interstitial frames …