Bloggertizer is a great earning tool besides others. All you need to do is just post advertiser links on your blog and get paid for it. It is really straight forward. All you need is a high traffic website with good PR.

The price of the post depends on your deal with the advertiser, relativity to your website’s topic, popularity of your blog, frequency of your blog updating, PageRank and other factors. Bloggertizer is a great earning tool if you frequently updated your blog , lots of sites linking to your blog and a high Google PageRank.

Just go and give it a try. You won't lose anything instead you have a lot to gain! Cheers!