Jing Project: Visual conversation starts here.

[Gassia]

Check this out. I can capture images and record video of my desktop to
show you something for example, then I just click on share and it
uploads to the website and I automatically get a link for it and can
send it to anyone.
I guess this makes the whole "process" of making screenshots and then
sending them to a person via email for instance much easier..

http://www.jingproject.com/

[Gassia]

Well ... I got shocked when I saw that the memory usage jumped up to a
whopping 100MB(!!!), the Mac was not very responsive after I recorded
a video and previewed it... In addition to this turnoff, you have to
create an additional account to upload your files, I thought you
wouldn't need that for some reason..
Maybe you will have a better experience :)
For mac and windows.

[Ramibotros]

more than a year ago i tried "Wink" and it was amazing .. stores it in
a flash format .. light on memory as hell and the output is very well
compressed. http://www.debugmode.com/wink/
i dunnow if there are any comparable solutions for mac osx, which
feels weird actually..