Dive summary:

• Facebook is the top search term in the U.S. and four of the top 10 terms are Facebook related, according to Experian’s look at 60 search engines.
• The four Facebook-related searches in the top 10 accounted for 5.62% of all searches in the U.S. during 2012.
• One-word search terms went up 16% in 2012.

From the article:

… Following its spot as the top search term, Facebook was also the most-visited website in the U.S. for the third year in a row. The top ten was nearly unchanged from 2011, with the exception of eBay returning to the top ten for the first time since 2009. It replaced mail.live.com (AKA Hotmail/Outlook).