If you've been blogging for any length of time, you know that the medium enables (encourages?) you to explore ideas in a lengthy, leisurely way. Twitter, meanwhile, legislates brevity. Posterous is a kind of a Goldilocks, just-right netherland, for items that are not too long, not too short. I'm going to be traveling for the rest of the week and will be experimenting with Posterous updates. Stay tuned.