We've got a new overview of Twitter (PDF)
An experiment with a more image based style for an overview look at tagging (PDF).
And a How To for the CrowdVine conference social network in use at the festival.
You can find the original files for each of these guides (created in iWork Pages on the mac) below – and they are all licenced under Creative Commons so you're free, indeed you are encouraged, to take and adapt these for your needs. (Erm – it's a bit of a slow upload here from the venue WiFi – so I'll post the original files later on…)