Acrobat Reader

Download page of Adobe Reader, free software that lets you view and print files in PDF format.

 Ghostscript, Ghostview e GSview

Applications can read documents in PDF and PostScript. Available for several platforms, including Windows and Linux

 Pfreaders.org

This site is a list of free software suitable for different platforms (Windows, Macintosh, Linux, etc. ..)

 Google Chrome

The new browser for web browsing fast and free.

 Lynx

The most famous text-based browser for surfing the Internet is multi-platform, free

 Mozilla

Multi-platform graphical web browser (available for various operating systems) of open-source and freely downloadable

 Opera

Browser multi-platform (also available for Windows, Linux and Mac) pretty fast (touted as the 'fastest man on earth'). Downloadable free but has a built-in system for displaying banner ads.