Welcome,
there is a lot of info on this forum so you can find pretty much everything you need via the search function. Here is a recent thread on c-betting (see below link)
http://forumserver.twoplustwo.com/17...tures-1190257/
Also, the more specific your question, the better responses you will get. You are better off posting a specific hand that gave you problems than open ended questions.
If you have an open ended poker question, try the Poker Theory forum under "General Poker"
Once again, welcome to 2+2