Stupid newbie 2257 question

[Stilgar]

I am a "sorta" newbie. I had a few sites back around 2000-2001 and then got so busy with my IT job I had to drop those sites. However, I'm considering getting back in the game with a site and see how things go again.

Can someone point me toward some info on the new 2257 rules. My big questions are:
1- do I have to keep records for content provided by sponsors or do I point the 2257 link to their site?
2- if I have a link site (like a tgp) do I have to have 2257 links?

I know this has probably all been covered a million times, but if someone could point me in the right direction or give me a quick run down on the rules I would really appreciate it!