InstantPresenter is a new live cross-platform (PC & Mac) presentation technology that allows non-technical users to upload and deliver PowerPoint presentations online, supported by VoIP, video and maximum ease of use.
InstantPresenter integrates audio and videoconferencing technology based on the Flash Communication Server which allows the presenter to show a live audio-video stream while presenting.

InstantPresenter works across computer platforms and different browsers without requiring the attendees to your meeting to have to install any special software.
To further support the effective delivery of live presentations InstantPresenter offers an interactive whiteboard and set of live annotation tools which can be used by both the presenter and the audience to collaborate over the materials being showcased.

The presenter can select if to allow the participants to be able to contribute to the whiteboard collectively or if the control remains in her hands.
A basic text chat facility is also integrated and made accessible to the end user at all times.
Pricing for InstantPresenter is organized according to the features utilized. The basic price is for VoIP integration only while the second price is intended for the additional video streaming capability.
5 participants $ 7.99 (only audio) $ 19.99 (audio and video)
10 participants $ 14.99 $ 34.99
20 participants $ 19.99 $ 49.99
50 participants $ 39.99 $ 99.99
The prices are all intended for an unlimited number of meetings.
A free fully working try-out is also accessible here:
http://www.instantpresenter.com/register.asp
InstantPresenter System Requirements:
Presenter:
PC or Mac
Netscape or Internet Explorer 4.0 or later
At least 800x600 screen resolution
Internet connection
Webcam and Microphone
Participants:
PC or Mac
Netscape or Internet Explorer 4.0 or later
At least 800x600 screen resolution
Internet connection
Computer speakers or headset