Here is a little more about the upset:

Social-networking star Facebook surpassed Google to become the most visited website in the United States for the first time last week, industry analysts showed.

Facebook’s homepage finished the week ending March 13 as the most visited site in the country, according to industry tracker Hitwise.

The "important milestone," as described by Hitwise director of research Heather Dougherty, came as Facebook enjoyed a massive 185 percent increase in visits in the same period, compared to the same week in 2009.

Check out more here.  So is this the first shot fired across the social networking/web site popularity wars?

In a pinch for a good Google sitemap generator?  Look no further than Sitemap Doc.  This is a great free Google sitemap generator and editor.  All you have to do is plug in your web site’s domain and let this online tool do the rest of the work.

From the web site you can easily:

• Create a new sitemap
• Edit an existing sitemap
• Use the Google SERP Rank Checker
• Check the Keyword Analyzer
• and much much more!

To try it out for yourself, be sure to point your browser towards sitemapdoc.com.