Embedplus.com — resource and quote below from Shola ‘Tay’ Omojokun, Co-founder, EmbedPlus.com

EmbedPlus can allow users to seamlessly and freely upgrade the videos they embed with attractive features that the standard YouTube player does not currently offer.  It was recently mentioned to me that supported features like annotations and scene editing would be useful for teachers wanting to mark up lecture, demo, and videos posted on wikis, blogs, etc.  Slow motion and zoom can have some useful applications for art, nature, and science videos.

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EmbedPlus helps teachers focus students on relevant parts of existing videos and allows them to add extended material.
EmbedPlus as an educational tool for videos

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From DSC:
With the increase of digital video, digital storytelling, lecture capture, and other related educational technologies, this tool may be helpful to you. Thanks Tay for the resource.

Addendum on 2-18-11 — also see: