The Retweet is a repeater and amplifier, causing the original message to appear and then reappear in Twitter timelines; a nudge here, a prod there. This is more than creating or extending a network of practice or personal learning network, it is networking.
He provides a useful take on some of the human and non-human players involved in Twitter and Twitter Chats, with a particular focus on the place of the hashtag.
Hashtags cooperate with other actors, repeat themselves and become more insistent. In collaborating with other human and nonhuman actors they do work by forging connections and facilitating communication exchanges. Hashtags don’t simply work for teachers in this regard, but work with them, sometimes coaxing, sometimes cajoling and sometimes compelling.