LiveHelpNow

Customer Service Software by LiveHelpNow, chat, ticket, email, knowledge base

TurboMeeting

TurboMeeting: Web conferencing, Remote PC Support, Remote PC Access, and Webinar

kwiksupport.me

Free Online Support tool for commercial use, too.

Deskroll Remote Desktop

A remote desktop tool for remote support and access to unattended computers.

Thinfinity Remote Desktop Workstation

Free web-based Remote Desktop Access Client (RDP).