125box is the second tool I found that meets most of my requirement. It seems that this site is still new and not many blog is using it. There is not much info regarding this site. All I can share here is my experience of test using it. Right after you sign up, an email with password will be send to you. You need to apply to get your 125×125 ads approved before you can place them on your blog. Information regarding you blog including Google page rank and Alexa rank will be needed. You can place your pricing for a month, 3 month, 6 month and 12 month. After you gain the approval, java scrip will be given to place at your blog. For now it seems that you need to apply for each 125×125 ads block separately. Meaning if you want to place 4 125×125 ads on the same blog, then you need to apply 4 times. You can implement the ads for different blog too.
When advertisers click on the 125×125 ads block set by 125box, a window will open up to let advertisers fill in email, upload banner image and target URL. Price for placing the ads can be seen too. 125box will manage all the work, follow up and maintaining the ads. All you need to do is making the approval. That too you can make it auto approve. You can check on the ads status, clicks, views and CTR when you login to your 125box account.
The minimum revenue that we’ll get is 50%. That means if you set your ads as $10 then you’ll get $5. As for now it seems that their charges is 50% of what you earn but I’m sure the price will reduce as more competitors coming in. For many bloggers, it should be worth the time and trouble for managing these ads. I’ve set up an ads using 125box and the price is $10 per month. I’ll test it out and let you all know the results later. That is if I get any advertisers to buy my ads.
P/S: 125box is no longer available.