MediaFile

It’s taken a while but YouTube is officially pushing back at the various estimates on how much money it costs parent Google by satisfying our collective hunger for million of video clips every day. Google paid $1.65 billion for YouTube in 2006, when it bought the site from Chad Hurley and former CTO Steve Chen (pictured).

Various YouTube executives we’ve spoken to privately over the last year have bristled at the idea that they are an expensive experiment for Google without a clear profit-making business model. Google CEO Eric Schmidt took the first step in a change of communications strategy in an group interview with reporters at the Sun Valley conference two weeks ago, and to more listeners on the Google earnings call on Thursday. His central point was that everyone’s favorite video site is on the path to profitability.

On Monday, two of YouTube’s PR executives hit back at some of the myths about YouTube’s business with a blog titled “YouTube myth busting.” These include claims that it only features short-form, grainy user-generated content when in fact it has deals with Hollywood partners and features HD content. They also said more than 70 percent of AdAge Top 100 marketers ran campaigns on YouTube in 2008.

But two disputed myths that raised the hackles of the tech blogosphere were related to 1) estimates of YouTube’s cost structure and 2) the “oft-cited” stat that YouTube only monetizes 3-5 percent of the site, which the PR execs said was “old and wrong.” The bloggers wanted some numbers and they didn’t get any from this YouTube’s blog

Here’s Henry Blodget of Business Insider:

Enough already. We’re glad that YouTube has not turned out to be a disaster. (We weren’t among those who thought it would be). But we can’t stand this attitude. If Google is tired of people “picking any number to fit any theory,” then they should just publish the facts.

Bill Gates was 19 when he came up with the idea for Microsoft. Michael Dell was the same age when he started selling computers out of his dorm room. Who are the teenagers and 20-somethings trying to hatch the big tech and media ideas of tomorrow?

paidContent.org has compiled a list of likely candidates under the age of 21, from web design impresarios to "pimp my MySpace" tycoons.  Taking advantage of the Web's low barriers to entry means that you often only need a really good idea. Catherine Cook

Age: 19
Company: myYearbook

Some great ideas come from analysis and introspection. For siblings Catherine and David Cook, it was the result of a snarky comment. “My brother David and I were flipping through our high-school yearbook during my freshman year,” Catherine recalls. “We were looking for a girl in his class—I think he liked her—and he was trying to show me who she was. Once we finally got to the picture he was like, ‘She looks nothing like that.’”