While I haven't taken it for a full test drive, PresenterNet seems optimal for presenting PowerPoint type presentations to an audience. There are some nice annotation features and a small preview pane which allows you to see exactly what your audience is seeing.
PresenterNet comes with free conference calling - the audio occurs over the phone.
You are limited to showing slides created from PowerPoint presentations, MS Word documents, Excel Spreadsheets, Adobe PDF material, JPEG photo images, or Flash movies. Desktop sharing is not possible with this application, though the presenter can allow the audience to mark up a slide.
For $40/mo users are allowed unlimited webinars and can save unlimited presentation packages. Webinar size is limited to 25 people at this level, with more seats available in higher level packages.
One unusual feature is PresenterNet's use of InterActors, gadgets which allow audience participation and feedback during a presentation. From the website:
Audience members answer questions, provide feedback, or enter information, using PresenterNet's proprietary InterActors. InterActors are special graphics added to slides to accommodate mouse clicks, slider settings, item selection, keystrokes and other information formats.
Presenters using InterActors raise their presentations to an exciting new level. As audience members become participants in an interactive presentation, they view every slide with a high level of understanding. Realizing that they may be called upon to add feedback; or that their responses may elicit comments; audience members pay close attention. Research demonstrates that these participants retain far more information than they would gain from an ordinary one-way lecture.While I prefer remote desktop sharing in a learning environment because I can have students walk through some of the steps while the rest of the class watches, however, this isn't a bad solution for most sales-oriented businesses or even lecture-based learning.
