On May 25, I questioned and debunked Facebook's "active users" number of 900 million in a column. This month, the company admitted that their unaudited numbers are wrong and misleading. Zuckerberg may be a technological whiz kid, but he has yet to demonstrate that he can run a public company.

Facebook is learning that what people like to chat about when they should be working isn't a very effective way to match ads to eyeballs. LinkedIn on the other hand has a very specific type of advertising structure, and one that works very well: job postings. Is there an ad people want to see more than one promising a better career?

I bought Google in its early days because I figured out the business model, and that it was simply a ubiquitous newspaper with a gargantuan circulation that would make billions by selling ads around its content. But I didn't buy Facebook because I have never understood it. But here's another angle that bothered me.

Despite its inflated IPO, Facebook couldn't look more different from what we hoped it might someday be. The problem is that no one's happy: Customers are subjected to more and more ads, and the companies who created those ads aren't seeing much of a return on investment. But the IPO adds another wrinkle to the equation...