I nominate http://twitter.com/invisiblepeople . An inspiration for the spirit, the soul, and incredible depths of interest on all levels. From being homeless himself on the streets- to taking on social media to tell other people's stories- this sweet soul gives others the voice they don't have on the streets. The true meaning of using Twitter and the power of social media to create a voice for change.

<object name="kaltura_player" id="kaltura_player" type="application/x-shockwave-flash" allowScriptAccess="always" allowNetworking="all" allowFullScreen="true" height="335" width="400" data="http://www.kaltura.com/index.php/kwidget/cache_st/1253291850/wid/_31192/uiconf_id/48410/entry_id/yzw915hku8"><param name="allowScriptAccess" value="always" /><param name="allowNetworking" value="all" /><param name="allowFullScreen" value="true" /><param name="bgcolor" value="#000000" /><param name="movie" value="http://www.kaltura.com/index.php/kwidget/cache_st/1253291850/wid/_31192/uiconf_id/48410/entry_id/yzw915hku8"/><param name="flashVars" value=""/><a href="http://corp.kaltura.com">video platform</a><a href="http://corp.kaltura.com/technology/video_management">video management</a><a href="http://corp.kaltura.com/solutions/overview">video solutions</a><a href="http://corp.kaltura.com/technology/video_player">free video player</a></object>