I'll jump on board. I've got working minimalistic HTML for the first 3 books so far (PDFs for the first two), and am thinking a git project would make this simpler. I'm slightly hesitant to shove it to github though, as I haven't read all the legal notices, and it'd be most useful to include the author's descriptions, and we technically don't have permission to do so in at least some of the cases (currently).
It's somehow the same list of books over and over again. This reddit is probably better suited for a collaborative approach:
http://www.reddit.com/r/csbooks/
http://www.htdp.org/ http://www.cs.brown.edu/~sk/Publications/Books/ProgLangs/ http://www.cl.cam.ac.uk/~rja14/book.html -> First edition free