I don’t link to Twitter updates nearly as much as I used to – largely because I’m not using Twitter as much as I used to – but one of the headaches of doing so was always how best to reference them. Yes, each update has its own permalink and you can include it as a URL in the post, but given how short Twitter updates are I always felt doing that was wasting the readers’ time.
Alternatively, you could also also just reference the update in its entirety – …