This is a really powerful point. Observation and commentary help a lot -- reading other people's blogs, and comments on mine. The process of preparing what I

This is a really powerful point. Observation and commentary help a lot -- reading other people's blogs, and comments on mine. The process of preparing what I've done for somebody else's consumption is probably the most valuable thing I do for my own expertise. Keeping a developer blog gives me deeper insights into what I'm doing because I have to explain them.