The Federal Trade Commission  published final guidelines
Monday that dictate, among other things, that “bloggers or other
word-of-mouth marketers” must state when payments, free products or
“other material connections” have been exchanged between them and the
companies whose products they review or otherwise promote on their
sites.

The FTC announcement states that “while decisions will be reached on
a case-by-case basis, the post of a blogger who receives cash or
in-kind payment to review a product is considered an endorsement.”

I'm all for it.