Google Analytics has announced the addition of industry benchmarking to those who want it. It is free as most people would probably expect.
Benchmarking allows you to see how the statistics for your site compare against other industry verticals.
At the present time you can compare your site's Visits, Pageviews, Pages per Visit, Bounce Rate, Average Time on Site, and New Visits data.
You can get more official information from Google at this link
Google Analytics Help Center