Here are some interesting technologies at least from my perspective.
HTML to PDF Converter It's a simple service to convert the web pages to PDF files. No need to install applications on your computer.It's free and without registration!
Input URL (web page)
Free Download of Linux 101 Hacks eBook
TheGeekStuff.com offers a Free Download of Linux 101 Hacks eBook. Click Here and enter password linuxrocks (case sensitive) and click "Submit". Thanks InfectiouSoul and Selma.