Most people start a new blog with the thought of either making money or making someone happy. Sometimes it’s both. Here I will focus on my three favorite spots to sell your 125X125 ad spots. You might even get some extra traffic in the process.
1. BuySellAds

If you’re able to get in this is a very nice place to sell your ad spots. If you have a high amount of traffic and a good rating, you should be able to get approval after finishing the many steps.
I’ll give them a 3/5
2. Project Wonderful
I did write a post about them a while ago, but my opinion did change a bit. They’re very strict on ad performance and will shut you down very quickly. It takes a while to build up nice stats on the system and the payout rates are okay. If you have a small blog you might make a few cents.
I’ll rate them 3/5
3. Technorati Engage
First time you’ve heard of them? Don’t feel bad, they’re still in beta version. You will however be able to register for an account and getting in is rather easy. Like the other two you won’t get paid much, but as your blog grows, so will your income. I would recommend them to small and established blogs.
I’ll rate them a 4/5.
If you know of any other sites who will happily sell your ad spots let me know. I’ll put it up.