PowerPoint is a great tool use in most online lecture. However, it could be useless if it can not be viewed by its intended audience.
There are two ways to ensure its view by all:
1. Convert it into web pages: click on webpage link on the letf to see demo.
2. Convert it into video click on PPT to video link on the letf to see demo.
To incorporate instruction led demostration in elearning, the following tools come very handy:
CamStudio - Free Screen Recording Software: http://camstudio.org/
CamStudio is able to record all screen and audio activity on your computer monitor.
Quick Screen Capture is another free software screen capture http://www.etrusoft.com/
It captures any part of screen image easily, print, edit screen shot with annotations - screen grabber, image capture, screen print software.
For a face to face videoconferencing, the following two seems to be one of the best among the free ones.
Free Web Conferencing & Webinar Service. No time limits or restrictions. Up to 200 attendees per meeting, screen sharing, conference calling and more..
FastStone Capture: http://www.faststone.org/FSCaptureDetail.htm, is a powerful, lightweight, yet full-featured screen capture tool that allows you to easily capture and annotate anything on the screen.