Some good places to start would be:
How to find out if your site is being scraped and what to do if your site is being scraped.
How to find out if someone has put your site in a frame and how to prevent someone from putting your site in a frame. What to do to get the frames taken off google.
How to find out if someone is stealing your content and how to stop content thieves.
How blackhatters can affect your ranking and SERPS, how to detect it and what to do about it.