Just thought I would share my experiences of playing online bingo...Anyone thinking of playing online bingo please check out the cashback sites first as there are a lot of good cashback offers to be had!
I recently joined Bunny Bingo via My Shopping Arcade, which required you to deposit £10, then Bunny Bingo gave you £20 and I also received £30 cashback, which isnt bad for a £10 spend!
I also received £30 from Topcashback for joining Mecca Bingo a while back.

I have joined a couple of other sites and received good cashback offers, so its always worth a look, just make sure you read the terms and conditions carefully and make sure you understand any wagering requirements, as there are a few like Paddy Power which require you to play through 3 x your deposit before you can withdraw should you be lucky enough to win. I overlooked this and could not withdraw after winning. By the time I had played through the wagering requirement, I had no money left to withdraw!

My favourite pay to play site is Wink bingo as they give you £15 free when you join and you do not need to deposit! If you win with the free money and wish to withdraw then they ask you to make a deposit of £10 but it is still worth it. Wink also give you £5 free for every £10 you deposit and also 10% cashback on all losses each week unless you win. Wink has been my luckiest site and I have managed a few wins of around £25 and only deposited a couple of times.

Another good site is Bingoport which is totally free! You play for points which can be earned by spinning the wheel and posting on the forum, as well as the points you earn winning on bingo and slots. You can then redeem your points for Amazon vouchers or convert your points to real cash to play on Bingo sites. It's very addicitive and you don't have to spend a penny, so no chance of getting into debt on this one, yet you can still win real cash and vouchers!