[dreams]

Are you asking about what are your obligations?

I did find this:

Spoiler:

http://business.ftc.gov/documents/bu...ple-are-asking

Do the Guides hold online reviewers to a higher standard than reviewers for paper-and-ink publications?

No. The Guides apply across the board. The issue is – and always has been – whether the audience understands the reviewer’s relationship to the company whose products are being reviewed. If the audience gets the relationship, a disclosure isn’t needed. For a review in a newspaper, on TV, or on a website with similar content, it’s usually clear to the audience that the reviewer didn’t buy the product being reviewed. It’s the reviewer’s job to write his or her opinion and no one thinks they bought the product – for example, a book or movie ticket – themselves. But on a personal blog, a social networking page, or in similar media, the reader may not expect the reviewer to have a relationship with the company whose products are mentioned. Disclosure of that relationship helps readers decide how much weight to give the review.

Don’t these guides violate my First Amendment rights?

If you are acting on behalf of an advertiser, what you are saying is commercial speech – and commercial speech can be regulated under the FTC Act if it’s deceptive. <snip>

Is there special language I have to use to make the disclosure?

No. The point is to give readers the information. Your disclosure could be as simple as “Company X gave me this product to try . . ..”

And the below is something that I have seen a lot on Amazon along with the simple “...... gave me this to review:

Disclosure of Material Connection: I received this book free from the author and/or publisher. I was not required to write a positive review. The opinions I have expressed are my own. I am disclosing this in accordance with the Federal Trade Commission's 16 CFR,Part 255.

As long as you did not ask for the book nor promise to give a review upon downloading it, I don't think you are under any obligation to post a review.