We have experimented with Twitter chats here at SAS, including a lively #statchat that we hosted two years ago for World Statistics Day. Likewise, our publications team has hosted a few fun Twitter chats with SAS book authors.
Outside of SAS sponsored chats, I've also participated in and really enjoyed watching the success of Mack Collier's #blogchat, one of the earliest successes in this genre.
So, today, when a co-worker reached out to ask for advice about starting a....