Genbook
Allows clients to schedule
Huddle
Helps your workgroup manage projects, and offers online storage
Job Spice
Generates attractive online résumés
Phonebooth
Provides phone services
Stacks
Organizes tasks by person and project
TextFlow
Simplifies document collaboration
Yammer
Gives workgroups a private microblog
Zoho
Offers a large variety of cloud-based apps