Astound Web conferencing, online meetings. http://www.astound.com

CallSite Web-based customer service and call center. http://www.callsite.com/

Webex Real-time meetings right through your Internet browser. http://www.webex.com/

Spiderphone Voice conference calls using either telephone (based on a New York area code) or PC. http://www.spiderphone.com

YAC UK-based call forwarding service for fax, voicemail. http://www.yac.com