Last night, the Google Analytics Benchmarking feature went live for those who opted in to the program. More on how to take advantage of that feature over here. Here are some stats from my personal blog.
You can also filter down the benchmarking to specific industries by selecting the "category list." Here are some of the options, broken open - the list will continue to expand as more sites are included:
Note: Google doesn't ask what industry you are in, they must get this information from some other method.
Forum discussion at DigitalPoint Forums.