Ok I have signed up for this Racing Newsletter that gives you tips on everything from driving to sponsorship. I signed up in about February (I think) and have been getting useful information ever since. I think its great info for whatever you race or drive.
The site Racingnewsletter.com
Go all the way to the bottom and subscribe. They come once a month with the top information from what guys are businesses are doing/saying, with useful links. ALL FOR FREE. Check it out. I sound like they are my sponsor
Curtis