internet, intranet y extranet

INTERNET

1. Google
2. Facebook
3. YouTube
4. Yahoo!
5. Windows Live
6. Wikipedia
7. Blogger.com
8. Twitter
9. Yahoo!
10. Mozilla.com

EXTRANET
1-https://www.inglessinbarreras.com
2-https://www.cisco.com
3-http://www.pep.pemex.com/Extranet.html
4-https://extranet.liverpool.com.mx


INTRANET
1-ciberconta.unizar.es/leccion/Httppc/
2-wzar.unizar.es/intranet
3-Intel: http://intel.com/
4-acer: http://www.acer.com
5-http://www.utregionaldelsur.edu.mx/