I wish extension that could be monetizing joomla sites..
maybe amazon? like apf bridge, but more powerfull on its SEO and SEF features, such as its meta tag and its URL friendly..
like my website, by using amazon API, i create joomla book
but its limited to book category only because amazon use different stucture for each category.
or indeed? you can earn money as indeed publisher.
my friend tried to develop indeed API as extension, basically modifying from jobs salary. his website is JobSyndicates | Find Jobs online, Job Search and Syndication
and i tried to make job search engine here: Job Search Engine
and there are so many affiliates out there such as CJ, ebay, SHopping?
or maybe template that SEO and adsense optimized?
There are many Internet Marketer out there use that kind of website as their primary earning.
With this kind of extension, I am sure will boost sign up to youjoomla, even for them who cant use joomla but use website to earn money..
This just a small idea for you to monetize joomla sites.