stuntdubl - 6:13 pm on May 25, 2010 (gmt 0)
Yes. It's about time to add advertising - and don't listen to the complaints. The customers (who don't pay) are not always right. The supporter's forum should be left without ads. Everything else is open game.
Leaderboard and 300x250 are the best bet. Stay clearly labeled and these standards sizes. If you want to do CPM ads - then include a footer leaderboard as well.