I'm playing with Google Analytics and doing the Analytics Academy which is very helpful. My business is an online retail shop, and while I know what kinds of metrics I should be tracking, I really don't know what is normal, bad or good on many of them. For example, a few weeks ago I happened across a blog article talking about bounce rate that mentioned general guides on what is a good and bad bounce rate. He said that in general, rates between 50 and 80 were not great but acceptable and rates over 90 were bad. But he added a little caveat that if your business is online retail, a bounce rate of 70 can be pretty standard, so in that business domain it's not a bad bounce rate.

This is the kind of thing I'd love to see.... typical, expected or average metrics to use as a baseline for online retail. Collected in one place so that I don't have to hunt all over the internet to discover them. Does anybody here know of such a resource?