GoToMeeting

1. Supports recording

2. Built in features

3. Collaboration

3.1. Share control of your computer with others

3.2. Screen Sharing

3.3. Conference calling

4. Built in chat

5. Outlook integration

6. Flexibility

6.1. Negligible pre-reqs

6.2. Telephone Bridge Support

6.2.1. Centralized call in number

6.3. Email invites

6.4. Scheduled or on demand

6.5. Intuitive

6.6. Can show any apps on your desktop