Messaging apps: Gmail and Google Calendar and Google Groups for Business

Gmail storage	25 GB / account
Interoperability with Microsoft Outlook email and calendar
Sync with Blackberry Enterprise Server
Easy contacts management
Mobile email, calendar and IM access
Email security, powered by Postini
Gmail ads can be disabled
Resource scheduling in Google Calendar
Mailing list functionality and easy content sharing with groups

Collaboration apps: Google Drive, Sites, and Video for Business

Google Drive storage	5 GB per user for file storage
Google Sites storage	10 GB plus 500 MB per user for shared storage
Google Video for Business offers private, secure video sharing
Google Apps Script

Support and reliability

24/7 phone and email support for critical issues
99.9% uptime guarantee SLA*
Synchronous replication
Self-service online support

Increased security

SSL enforcement for secure HTTPS access
Customizable spam filtering
Customize password strength requirements
Email routing and email gateway support
Customizable policies to filter email containing sensitive information
Email encryption using standard TLS protocols

Migration and integration tools

Manage multiple domains from one Google Apps account
Email migration tools and API
Directory sync with LDAP systems
Email routing and email gateway support
Single sign-on API
User and group provisioning API