Standard Edition User Accounts

For organizations who started using Standard Edition after 14 January 2009:
Standard Edition users get a custom email address, tools for word processing, spreadsheets and presentations, a shared calendaring system and access to a flexible intranet system. Organizations using Standard Edition get up to fifty free, ad-supported user accounts. If your organization requires more than fifty user accounts, Google recommends using Premier Edition.

For organizations who started using Standard Edition before 14 January 2009:
You may continue using Standard Edition free of charge with your existing user account allowance free of charge. If you need to add additional user accounts over your current user account allowance, Google recommends upgrading your entire domain to Premier Edition. Alternatively, you can request additional user accounts for Standard Edition.