Kaltura's open source video platform is based on a modular combination of customizable building blocks called Kaltura Widgets. These Widgets can be customized, skinned, and combined using simple workflows to form Kaltura applications. Web publishers, Value-Added-Resellers (VARs), and System Integrators (SIs) use our framework to rapidly and cost-effectively develop unique rich-media experiences that fit their specific purposes. Building on Kaltura's platform they can focus on innovation while seamlessly integrating with any website, written in any programming language. Moreover, Kaltura's reference implementations and growing library of widgets and applications (including extensions and plug-ins to the Web's most popular CMSs) allow publishers to select off the shelf video solutions for rapid deployments that can be fully enabled within minutes.
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Very cool video embedding and editing/contributing tool.