Twitter is a free social networking and micro-blogging service that allows users to send
"updates" (text-based posts, up to 140 characters long) to the Twitter website,
via short
message service, instant messaging, email,
Interview with Twitter co-founder Biz Stone
in list: New Social Behaviours
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Twitter - Wikipedia, the free encyclopedia
in list: New Social Behaviours
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Notation: * = Private bookmark and comment|… = Clipping [?] | … = Public highlight [?]