I think this is exactly what you are looking to find.

There are over 70 casinos listed and over $18,000 in online casino bonus dollars available.

just do a yahoo search on online casino bonus offers .
Might have some good stuff come up.

online dream casinos are the answer for you!

I don’t know if you are familiar with the term ‘Dream Casino’, this type of casino would let you play online for free for the first 75 or 50 dollars, and if you win (and i guarantee that you will win something for sure!) you can keep your money, this concept of online casino/poker playing is little known on the internet, however I suggest that you play on one casino then take the winnings, after you finish the first 50 free dollars to play on that one you move one to another casino!

the concept is very clearly explained here:

I am making hundreds of dollars weekly with this type of system!