| http://www.w3.org/ns/prov#value | - By now you???ve doubtless heard of the many group messaging startups looking to help multiple people keep in touch with each other ??? there???s been endless buzz about how these will likely be some of the breakout stars of SXSW. However, most of these companies do far more than just send texts to multiple people: some of them offer location sharing, conference calls, and other features.
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