Facebook tops Google as "most visited web site in the US"

Interesting note in the Potomac Tech Wire today.

Facebook Tops Google to Become Most-Visited U.S. SitePalo Alto, Calif. -- Palo Alto-based Facebook topped Mountain View-based Google last week to become the most-visited web site in the U.S., according to new data from audience measurement firm Hitwise. Facebook claimed 7.07% of all U.S. Internet visits last week, eclipsing Google's 7.03%. Visits to Facebook were up 185% for the week, compared with the same week in 2009, while visits Google rose 9%. Facebook also has wrestled away the top U.S. site ranking from Google on several prior occasions, including Christmas Eve, Christmas Day and New Year's Day. Together, the two sites accounted for 14% of all U.S. Internet visits last week.

The problem is that Facebook doesn't appear to be able to monetize their product as well as Google, nor are they able to add new services/features to grow their relationships with current users. Let me know what you think... Am I off base on my comment?