[1] [CITE@en[Activity Streams Concepts and Representations (Draft)]]
( ([TIME[2010-07-06 08:16:48 +09:00]] 版))
<http://activitystrea.ms/head/json-activity.html>

[2] [CITE[ActivityStreams - an evolving format for syndicating social activities around the web]]
( ([TIME[2010-07-01 02:46:20 +09:00]] 版))
<http://activitystrea.ms/>