Google Challenges Facebook for Social Networking Supremacy--

Google throws its hat into the social-networking ring, this time with a smoother user interface and a focus on mobile gadgets

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James Hendler , Orkut , Google Plus , Facebook , Twitter , Google , Rensselaer Polytechnic Institute , Friendster , Linkedin , Google Docs , Google Maps , Instant Upload , Web Science , Cognitive Science , Tetherless World Constellation ,