If you know of or use Honeybadger to track your bugs, you'll appreciate this. The fine folks at Honeybadger Industries just blew up the campaign emailing industry.

It's easy to get lost in metrics. You've got A/B tests, time series tests, keyword tests, every kind of test you can think of. You're measuring engagement, clickthrough, funnel progress, time-on-site, everything. But do you really know who your customers actually are? Do you really care?

This is a tremendous (both in size and quality) article by Eugene Wei about the whys and hows of social networks. Even if you don't identify as someone who engages regularly in the status game, you'll likely learn a lot about those who do, and probably find that you engage more than you think.