I brought this subject up a while back. It's a big one that doesn't get enough attention.
And yesterday we got some stats from Twitter that I'd like to talk about. Dick Costolo gave a "state of Twitter" press conference yesterday at Twitter HQ. Danny Sullivan was there and live blogged it. Here's the part of Danny's live blog that I'd like to focus on:
100 million active users.
An active user is a Twitter user that logs into the service. So that means that 75% of Twitter's users don't log in ...