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YouTube is a place to discover, watch, upload and share videos.

Apple designs and creates iPod and iTunes, Mac laptop and desktop computers, the OS X operating system, and the revolutionary iPhone and iPad.

best open source

Project Gutenberg offers over 33,000 free ebooks to download.

Compare and review Mozilla Firefox, Subversion, Apache HTTP Server, MySQL, PHP, Linux Kernel 2.6, Bash, OpenOffice.org, Firebug, GCC, the GNU Compiler Collection, and more...

Scribd is a social publishing site, where tens of millions of people share original writings and documents. Scribd

¡Bienvenido a Facebook en Español! Facebook es una herramienta social que pone en contacto a personas con sus amigos y otras personas que trabajan, estudian y viven en su entorno. Facebook se emplea para estar en contacto con amigos, cargar un núm...

MIT is devoted to the advancement of knowledge and education of students in areas that contribute to or prosper in an environment of science and technology.

Academia.edu helps academics follow the latest research.

It provides a priceless compendium of knowledge, realities and tools for building a sustainable future. Portrays important leaders of the ecological design movement such as: Buckminster Fuller, Jay Baldwin, John Todd, Stewart Brand, and more.