I have alot of experience in bingo as a player and as an affliate.From a player point of view I say nobody comes close to PLAYTECH chat room.Nikki ,roxy and the girls are the best.
From earnings point of view my website was highly focused on free bingo cards and free money and I could get 100+ sign ups a month with some groups and the revenue really sucked.Now I have focused more on bingo halls that offer 100% deposits and NO free money or cards.
The best money makers I have is byworth software.