I seem to have a real addiction with downloading PDF's. I know that I have over 15 gigs of pdf's that I have downloaded. I know there is no way I can read all of them but its good information and its free. How can I possibly turn down free knowledge. I only print the ones that I would need or want on a semi regular basis. Does anyone else suffer from this addiction.
Feel free to add some links to PDF's you think your fellow members could benefit from. For example I really enjoy this site:
http://www.gutenberg.org/wiki/Main_Page

