I've rounded up ten recent infographics on Twitter, with lots of stats, the best times to send tweets, the psychology of Twitter and more.
Where possible, I've added the infographics to this post in a readable size, but for others you can click on the image to see a larger version...
Profile of a Twitter user (via Daily Infographic)
Who's using Twitter? (Flowtown)
Twitter vs time (wallblog)
Twitter psychology for marketers (state of search)
What the world would be like without Twitter (Hubspot)