At this moment it is impossible to log on to the COD4 Beta Signup. The servers are bogged down completely. Activision said they were upgrading the servers over the weekend, apparently they did not do enough.

They did a poor job in handling the inflow for this beta and they should have done it like the Halo 3 beta, i would have rather bought a game in order to play the beta, this is more frustrating this way. This is the error the server is giving me at the moment: Warning: mysql_connect() [function.mysql-connect]: Too many connections in /var/www/cod4.streetwise.com/template2/html/template.inc.php on line 596
Too many connections.

If any of you had luck please include it in the comments.