pouët.net

Fatboy Slim - "Machines Can Do The Work"
http://www.youtube.com/watch?v=HUDKGyXpitw

(thanks to Gemini)

I have no idea if this video has already been featured in this thread. But I think it looks a bit like a United Force demo :).

Lützenkirchen - Ich Hasse Musik
http://www.youtube.com/watch?v=58mJarVTG8c

http://www.youtube.com/watch?v=TMCf7SNUb-Q

Carousel
http://www.youtube.com/watch?v=2YFkcwtpGZo

Making of
http://www.youtube.com/watch?v=teoSDTJDjF4

hah, heat induced bb code lazyness... :P

well,
http://www.youtube.com/watch?v=5ej3dj4x64k

Strings
Rolling shutter sucks for the most times.

Troops Of Doom - Tension

Demosih indeed, its from our friends in Aenima :)

Awesome! And SO demo'ish:
Blockhead's 'The Music Scene'
animated by Anthony Francisco Schepperd

http://www.youtube.com/watch?v=eJ4Rd_TP_pM DOMINATOR!!!

Turkish music video from 1993 with real demo footage

http://www.youtube.com/watch?v=ireZXZSs_uw
http://pouet.net/topic.php?which=7516

http://www.youtube.com/watch?v=AC7QA_QVrZw striking resemblance with nuance - julie!

http://www.youtube.com/watch?v=eEiu2Kzd0KU - woohoo!

http://www.youtube.com/watch?v=6V9KSoOnIo8 -- ...and that hot gal!

@gleema: Yea she can yodel.. but demo'ish? more like Daemon'ish

that video is awesome!

http://www.treehugger.com/files/2010/08/ant-colony-living-in-a-scanner-is-recorded-over-five-years-video.php