This site connects bloggers with advertisers.
Here’s how it works:
Advertisers who are looking to get the word out about their product or service, join the site and pay to have their product/service promoted (usually in the form of reviews) on available blogs.
Bloggers who are looking to monetize their blog apply to run one of those promotions on their blog and are paid for doing so.
As a blogger, you can choose which products/service you want to review.
Now, as far as how much you can earn, it depends on the advertiser. You can earn anywhere from $5 to $200 (although that’s very rare) or more per review.
So if you own a blog, this is a great way to earn money from your blog, and this can be done in conjunction with other blog monetization methods.
What makes this especially attractive is that you can even use one of those free blog sites like Blogger or WordPress.com.
Most paid to review sites don’t accept blogs built on free blogging sites, but this one does, so you should take advantage of it.