Youtube provides a functionality to directly link to a part of a clip:
http://www.youtube.com/watch?v=IOFR3o-dHlM#t=1h59m20s

I very much appreciate this functionality.

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Off topic:

Too bad youtube is quite obviously owned and managed by classical money hungry bastards.

Hollywood, distribution channels. Microsoft. ( Look what they did to skype )
Classical corporate business mentality, how to get as much money out of this A.S.A.P. . In stead of thinking long term, how to provide a beautiful useful service to the people and still get rich doing so.

Also a lot of people who advertise on this forum have that same sick capitalistic views. They probably grew up in a society that teaches this mentality (USA).

There is nothing wrong in trying to get rich, but have the decency to give quality of service you provide a higher priority than financial gain. In the end , if you dare to have some long term vision, that will eventually reflect upon you.