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Loopt, based in Silicon-Valley and backed by leading venture capital firms Sequoia Capital and New Enterprise Associates, has created an interoperable social-mapping service that allows individuals to use their location to discover the real world around them, enabling them to find and enjoy the people, places, and events that mean the most right here and now using their mobile phones. With Loopt, individuals will always know who’s around, what to do, or where to go

Voxli offers browser-based group voice chat for gamers and teams. Users of Voxli can voice chat with up to 200 people at a time without leaving the browser or setting up a voice server. Each group voice chat exists at a persistent URL, which can be shared with friends via email or IM. Voxli works on Windows and Mac, and supports push-to-talk (walkie talkie) functionality outside of the browser. Voxli is currently free while it is in open beta.