Try this one code dot google dot com/apis/maps/signup.html then I get msg Not Found The requested URL /createkey was not found on this...
You may have to add the (signup.html) at the end. http://code.google.com/apis/maps/signup.html
It works! I just got one. http://code.google.com/apis/maps/signup.html (needed it for MapPress plugin for WordPress).
Separate names with a comma.