Our PressED presentation was a 2 person affair. Lucas and I collaborated by creating a Google Doc with a table that outlined what we wanted to cover in the 15 tweets we were making. Space is a constraint, so we wrote, rewrote and edited each tweet ahead of time until it was as tight as we could make it. Each tweet usually contained a link, which is one way to help pack way more info into a tweet – link to more information. We also used images liberally to either reinforce what we were talking about, or add additional text to the tweet.
My tip: include some interactivity. We did this by incorporating the built-in Twitter polling tool.