I write for many different sites. Most of them are sites that accept only articles (like Helium) or many media outlets (like AssociatedContent). But one site pays its contributors for writing reviews of anything.
Yes, you've read that one right. ReviewStream pays you to review basically anything. You can write a review about a restaurant, a hotel, a lipgloss, your newest iPod, website you visited, book you've read, movie you've seen. And according you the site's own FAQs, you can even review your doctor.
So anything goes and that's the beauty of it.
Your reviews have to be minimum 200 words (though to be on a safe side, 300 words is a better choice). You can either get paid a full rate (which is $2, so not so bad) or a "bulk rate" ($0,40). It all depends on how original, well written is your review. Though it's safer to assume you'll get paid the lower rate.
To get paid you need to write 125 reviews (assuming each of them will get you a bulk rate), because they transfer money onto your PayPal account once you reach $50.
Additionally your reviews can get votes and each vote pays. Once you earn $5 worth of votes, the ammount will be transferred to your PayPal account. The beauty of it is that you can vote for your reviews.
To give you some idea this review was paid full price and this one got a bulk rate (Yes, I would appreciate a vote :))
Read more about my experience with ReviewStream.com:
Experience with ReviewStream.com
Get Paid with Reviewstream