http://www.pdf.org.yu/download.htm
http://freebooks.by.ru/
http://www.den.anet.ee/books/
http://www.ctu.edu.vn/sticnet/Books-Online/BookShell/INDEX.HTM
http://www.gammabookz.bl.am/
http://tsunami.ghosthacked.org:8080/downloads/applications/O'ReillyReferenceLibrary.zip
http://hybrid.academic.cmri.ac.th/ftp/Books/