Been participating on a forum lately. There's something about writing there that invites a different kind of energy than writing on a blog — a sort of enthusiastic generosity mixed with informal concision that I cherish so much. Why is that?

Maybe it has to do with one's identity on a forum — starting topics and responding to them, being in a chorus of many voices. What you write there is like a series of musical notes that feed off of what was previously said and that others complement in kind. A blog post can feel like it has to be a contained musical composition.

Of course it doesn't have to be, and that's where the great blogging happens. Reminds me of why I love playing classical guitar — to make a single instrument sound like an orchestra.