Very interesting article. We are also working on a small side project, called https://www.MetaGrader.com

We are aware of the aesthetics of the site, and working on that, but we have some discussions on how to monetise it; should we go for a credit system (with weekly reports about your site, historic information, automated improvement tips), should we go for selling expert advice, or should we focus on other things, like advertising, reselling services like pingdom/gtmetrix, etc?

We would value your opinion in this!