It pays dividends to subscribe to airline newsletters so that you're always in the know whenever there are upcoming business class deals. (raytravelsfree.com)
Not only do you get the nice business class deal (and a big seat), but you get the bonus miles for flying up front. (travelskills.com)
SkyTeam may have Delta but I don't see too many other airlines in that alliance that I want to fly and that regularly offer good Business Class deals on routes I want to fly. (travelingformiles.com)