Famousmemorabillia.com I've dealt with before. They are an AFTAL Dealer #137. Most of their stock is questionable. Most of it is sloppy and rushed but Authentic and it does seem like a mixed bag of stuff now where some is authentic and some are forgeries. I have a few pieces from them that are real. You can find better examples of autographs from other places than them and get more for your money. Depends on if you care really what the autograph looks like. That being said, would I ever buy from them again? That answer is no I wouldn't be buying from them again.
As far AllThingsThatRockAuthentics.com I don't see anything wrong with any of their Lita Fords.