I cannot access drupal.org
For what it is worth here is a link to Chromebook help for "This webpage is not available".

Assuming you've typed in the right URL, it looks like Chrome will give you this error message if it thinks the site takes too long to respond.  The help page also suggests:


Clear your cookies.
Adjust your proxy settings


You could also try to use another browser to access the site (both Firefox and MSIE work OK for me).