Imagine turning a Firefox extension into the base for an ad network. Someone just did that, as Patrick Gavin recently announced that ScribeFire is launching an ad network and ad optimization service for bloggers. They are currently in limited beta testing, but if you want to sign up your blog quickly you can be one of the first to try it out by emailing them at seobook@scribefire.com.

An extension to a social network usually does not create such an opportunity, but if you create a brand and destination around the extension and aggressively market it there are opportunities to expand your business. Which sorta makes me want to make SEO for Firefox better and come up with some sort of cool strategy for it. Have any ideas?

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