From Evan Williams, the boss at Twitter, formerly the co-founder of Blogger.
I still blog on occasion when I have something I can’t squeeze into 140 characters, but that’s rare, and for many people Twitter (or something else) will suffice nicely on its own. However, does that mean they’re not blogging? We’ve never labeled Twitter a “micro-blogging” service, but that’s certainly one of the primary use cases.
All from Andreas Kluth's Hanibal blog.