HRoth - 1:59 am on Mar 5, 2011 (gmt 0)

I have a supplier that does this. What I offer is what they don't--information about the product plus a bunch more things they don't sell. I actually charge more for their product than they do, but it still sells. So I don't think it's necessarily a problem if your supplier has an online presence. I wouldn't be competing with them on AdWords, though. Aim for a different group of people, folks they are missing. You can reach them by writing different content from what your supplier writes.