Activity Stream

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= An activity stream is a mash-up of an individual’s or organization’s feeds. [1]


"As people use various different web sites to blog, update their status, post their location, or photos, sites and tools have emerged to aggregate these various actions into a continuous eclectic stream of activities. Such activities typically involve a subject (the person doing the activity), a verb (what the “doing” is of the activity), and often a direct object (what the activity is being done to or with). Activity stream aggregators typically republish activities in reverse chronological order, independent of type of activity." (

More Information

  1. Chris Messina on Activity Streaming, at
  2. Mailing list at
  3. DiSO Activity Feeds standard, details at