Where I can find good online poker tournaments to play in?

Hello,

This is my first question here :-). I love to play poker and just recently I started to play poker online. I don’t know much about online tournaments and where can I find some. I hope you can help me. Perhaps you know a good site which contains details about poker tournaments and stuff. I don’t mind paying a little buy-in if I can win big time :-).

I appreciate any helpful advice.

Many thanks,
Don