Hey I found this nice article from youngentrepreneur.com and thought of sharing it with you
“At some point, almost all bloggers toy with the idea of selling advertising space on their blog. This is a good way for bloggers to earn more money for their blogging efforts, helping to create recurring income each month.
But any time the subject of blog advertising comes up, it’s immediately followed with the question “How much should I charge for advertising space on my blog?” And “What pricing platform should I use?”
The problem is there isn’t really a clear answer or pricing structure for blog advertising. There are a number of factors that determine acceptable advertising rates, and it seems like many bloggers are just using guesswork to set their rates.”