Link:
http://dl.getdropbox.com/u/434669/temp/OpenSourceStudyTools.pdf For a presentation for other students at Roskilde University, I created this presentation of various (mostly) free software tools/services for introducing them in ways to use the internet and their computer in ways that makes studying or their life in general 'easier' in some sense.
At the end of the pdf there are links to the Keynote-file to the presentation so that people can modify it further if desired. (I'll see if I can save it as a PowerPoint as well if any of you are interested)