Interesting user search stats from AOL search lab

AOL research lab had a lot of interesting stats on user search behaviors that I have not seen anywhere else. But their website has been down since the AOL data debacle two weeks ago. Here is a peek at some of the interesting bits and pieces:

• Top 20% of “heavy users” perform 70% of all searches.
• 5,000 web domains (among 50M) get almost 50% of all clicks in search results.
• Winner takes all: the top entry get 45% of all clicks. The second and third get 13% and 9% respectively.
• 25% of users go to next pages in search results.

Query breakdown based on category (click to enlarge):