Now THAT, I'd believe in. 3.5 uniques a month seems reasonable and a good number to tout (though it's woeful compared to any other site with that level of funding).

But, given their 500,000 networks #, that means that they are getting.... 7 uniques per network per month? Assuming zero overlap?

And uniques are a bad metric, too. They have 1.5 million indexed pages ( http://www.google.com/search?q=site%3Aning.com ) - I'd wager 1/3 to 1/2 of their uniques are from long-tail search queries. And I'd further wager than 50%+ of those uniques BOUNCE (http://en.wikipedia.org/wiki/Bounce_Rate), so exactly what percentage of those 3.5m uniques actually do ANYTHING? Bounce rates of 30-50% for search engine traffic are pretty good, so...