That's exactly the kind of resource I've been looking for, thank you very much Edit: > based in part of the research and work done for a presentation on the s

That's exactly the kind of resource I've been looking for, thank you very much Edit: > based in part of the research and work done for a presentation on the subject given at the International Free Software Forum (FISL) given in Porto Alegre, Brazil. Oh, nice. The author presented the subject here in Brazil in 2004. If anyone reading this is from South America, FISL is a great event with great talks (though most of them in Portuguese). The organization is having some financial trouble for this year's edition, but hopefully they'll overcome it.