Inbox 2.0

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Inbox 2.0 refers to a new generation of email clients that use data in email archives to infer people's profiles, behaviors, social graph, and importance.[1]

The term originally appeared in a New York Times article[2] and has since found wider usage on the Internet.

Yahoo and Google have both announced products with Inbox 2.0 features such as cached imaging and conversational email replies. A number of startups such as Xobni, Lookeen, and Xoopit are also competing in this space.[3]

The name is a reference to the Web 2.0 buzzword.


  1. ^ Gabor Cselle: The Definition of Inbox 2.0
  2. ^ New York Times: Inbox 2.0: Yahoo and Google to Turn Email into a Social Network
  3. ^ Om Malik: Google & Yahoo Finally Get The Memo: Email Is The Social Environment