Products of Dimdim Inc.
DimDim is a web hosting for live meetings, webinars, and web conferences. You will be able to see your interlocutors, provided you have a web cam; and also you will be able to share presentations, show your desktop to other participants, and many more. All you will need to get it to work is your web browser and OpenOffice 2.3, the rest will be.
Freeware download of Dimdim Web Meeting Publisher 3.0.1, size