I have written a widget sometime back.

Now, I see that it has become hugely popular among blogspot users and rank 6th on front page of Google for the term.

I released it in Sep 2008 and just in a matter of 8 months (240 days) it has given me some 5150 back links from various sites. ie ~22 links/ day.

Now I am looking to get monthly sponsors for this widget. Even if you take a modest target of 10 links/day, it should fetch the sponsor at least 300 links in a month.

I would like to know how can I position the monthly sponsorship of such a widget? What should be the ideal price?