The presentations that I gave at PATLIB 2009 in Sofia, Bulgaria lastweek are now available at http://www.rba.co.uk/patlib2009. There are two: a 25 minute presentation that was given as part of the main conference and the longer half day pre-conference workshop. As usual, many of the slides will probably not make sense without my commentary but you are welcome to email or Twitter DM me if you want more information.
There is also a two page “Getting started with Twitter” document. Yes, I know that there is a plethora of how-to-twitter pages on the web but almost none of them answer the questions that I am asked on my workshops. The best and most succinct that I have found so far is the two page http://portfolio.ginaminks.com/job_aides/twitter_cheat_sheet.pdf