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The Echo Nest is a music technology company founded by two MIT Media Lab PhDs. The Echo Nest’s proprietary music analyzer API automatically analyzes audio (e.g., aif, wav, mp3, m4a), and generates an XML file describing the musical and structural content of the music. Computation takes about 1/50th of the duration of the track and the text output is about 1/20th of the size of its corresponding mp3.

Unlike other automatic methods of acoustic feature extraction, which progress strictly on raw audio signal, our technology was inspired by how people perceive music.  As a result, developers are able to automatically extract and use a wide array of time-based musical attributes for any song, including: timbre, pitch, rhythm, loudness, onsets, beats, tempo, sections, time signature, key, etc.

In a nutshell, OSocial lets you see your social data in an open, portable way and we are working on secure methods to allow friending between social networks ; and this without any new registration. OSocial can be seen as Meta Social Network - a way of joining together existing social networks by connecting profiles from different sites.

MicroID is a lightweight identity layer for the web, invented by Jeremie Miller (creator of Jabber). MicroID enables anyone to claim verifiable ownership over content hosted anywhere on the web (social networking sites, discussion forums, blogs, etc.). MicroID is not an authentication or single-sign-on service, just a straightforward method for identifying content ownership that complements existing technologies such as OpenID and microformats. The technology is radically simple and enables developers to build new and unique meta services with minimal effort. It's already being used by the likes of ClaimID, Last.fm, Ma.gnolia, Wikitravel, and Yedda.

Users can now access their matchmine MatchKey, a colorful sphere that represents a person's interests, with the single-sign-on OpenID, import user preference information from Web sites, and export their MatchKey user preference information. Users can share their MatchKey with any Web site in matchmine's "media discovery network." Each time someone uses their MatchKey, it "learns" preferences and retrieves information that matches preferences.

The World Wide Web Foundation seeks to advance One Web that is free and open, to expand the Web's capability and robustness, and to extend the Web's benefits to all people on the planet. The Web Foundation brings together business leaders, technology innovators, academia, government, NGOs, and experts in many fields to tackle challenges that, like the Web, are global in scale.

As promised a few months ago, the OpenSocial Foundation is up and running. This organization seeks to ensure that OpenSocial will remain implementable by all, at no cost, in perpetuity. This Foundation will also help nurture the real power behind OpenSocial: the community of developers, containers, and everyone contributing to the specification. The curious among you are welcome to peruse the OpenSocial Foundation FAQ. In addition to the individuals listed below, the complete Board of Directors will include two additional representatives from the community at large that will be nominated and elected by that very same community in the coming weeks.