Jing, free provider for .swf files 

http://jingproject.com/

Screencast-o-Matic, free provider for .mov files

http://www.screencast-o-matic.com/

Wing, free software for various output file formats, multi-lingual, start/stop capture & replay function, now including audio

• Output formats: Macromedia Flash, Standalone EXE, PDF, PostScript, HTML or any of the above image formats. Use Flash/html for the web, EXE for distributing to PC users and PDF for printable manuals.
• Multilingual support: Works in English, French, German, Italian, Danish, Spanish, Serbian, Japanese, Brazilian Portuguese and Simplified/Traditional Chinese.

http://debugmode.com/wink

James/Eurominuteman

Yugma, free for max. 10 people (desktop sharing)

http://www.yugma.com/

vRoom, free for max. 3 people (desktop sharing, small office conference, used in conjunction the CIDER notes of The International Review of Research in Open and Distance Learning http://www.irrodl.org/index.php/irrodl)

http://www.elluminate.com/vroom/?s=sas

FreeConference, free for 150 participants/4 hours (virtual workshop plus desktop sharing)

 
James/Eurominuteman