Email/Webmail
Contact management, mobile/web access
Phone/VoIP, Voicemail, Email/IM integration, mobile/web access to voicemail
Instant Messaging, mobile/web access
Calendar, sharable, todo list integration, mobile/web access
Todo lists, sharable
Finance management and budgeting, receipt/asset tracking, sharable
File/print sharing
Backup, synchronization, mobile access
Document scanning/filing, mobile/web access
Centralized computer/network management/update
Media library/streaming
Home automation/security integration
Encryption (documents, files, email, etc.)
Web publishing, picture albums, blogs, etc.