One of site visitor of TBI, Mr. Dave N. commented on free web conferencing with 16 online suggested the online tool called Yakkle that is recently out in Beta.
Yakkle give you the ability to connect with multiple other users for 16 bit voice chat, file transfer, and real time desktop sharing with remote mouse and keyboard control.

Yakkle is the first product brought to you by ZenViva. Yakkle is currently supported on Windows XP and Windows Vista platforms & a high speed network connection.
To use the voice options, you should also have a USB Headset or a PC microphone and set of speakers. Yakkle is designed to integrate with a Google gmail or “jabber” Instant Messenger account (do not support AIM, Yahoo or MSN messenger accounts at this point)

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