Alexa rankings To me this is a total non-issue and blatantly obvious. Ortsbo's users do not only have to visit ortsbo.com to use the service. Take the live and global events, WangoTango and Maroon5 for instance. Ortsbo's service was integrated into third party sites and did not bring users to ortsbo.com therefore Alexa would not record these users but fans taking part in these events are indeed using the Ortsbo engine. This is why the Alexa rankings differ from a network such as Pinterest which has a much smaller user base. This is also why monetization for Ortsbo will not come from the same avenues of a social network such as Facebook. Monetization will come from licensing the Ortsbo engine to thousands of sites and events such as the Olympics in order to increase engagement and enable global targeted promotions.
In short, Pinterest drives all users through one site thus it has a high Alexa ranking. Ortsbo brings users together on potentially thousands of sites so it may always have a lower Alexa ranking than a site such as Facebook but it has the potential to have many more users all over the web . This also means that ortsbo will have a lower per user valuation than Facebook but Int at this point is seriously undervalued as we await news and to my estimation, partnerships with big players.