The document discusses Activity Streams, which is a format that extends Atom to add verbs and objects for describing activities. It defines common verbs like post, share, follow and objects like note, photo, person. The format has been adopted by many social networks and services to represent user activities in a standardized way and allow interoperability across systems. The goal is to federate the social web by connecting user profiles and activity streams across different platforms.

1. SOCIALISM
ACTIVITY STREAMS,
& FEDERATING THE SOCIAL WEB
#fsws
Chris Messina • Federated Social Web Summit • Portland, OR • July 18, 2010

2. actor verb object target

3. ATOM
JSON
Photo by trainman74

4. ATOM+ACTIVITYSTREAMS
<?xml version="1.0" encoding="utf-8"?>
<feed xmlns="http://www.w3.org/2005/Atom" xmlns:activity="http://activitystrea.ms/spec/1.0/">
<entry>
<title>...</title>
<link rel=”alternate”>...</link>
<id>...</id>
<updated>...</updated>
<author>
<activity:object-type>person</activity:object-type>
<name>...</name>
</author>
<activity:verb>post</activity:verb>
<activity:object>
<activity:object-type>note</activity:object-type>
<content type=”html”>
...
</content>
</activity:object>
</entry>
</feed>

5. ATOM+ACTIVITYSTREAMS
<?xml version="1.0" encoding="utf-8"?>
<feed xmlns="http://www.w3.org/2005/Atom" xmlns:activity="http://activitystrea.ms/spec/1.0/">
<entry>
<title>...</title>
<link rel=”alternate”>...</link>
<id>...</id>
<updated>...</updated>
<author>
<activity:object-type>person</activity:object-type>
person
<name>...</name>
</author>
post
<activity:verb>post</activity:verb>
<activity:object>
<activity:object-type>note</activity:object-type>
note
<content type=”html”>
...
</content>
</activity:object>
</entry>
</feed>

6. VERBS &
OBJECTS

7. VERBS & • Add Friend • Article
OBJECTS • Check-in • Audio
• Favorite • Bookmark
• Follow • Comment
• Like • File
• Join • Folder
• Play • Group
• Post • List
• Save • Note
• Share • Person
• Tag • Photo
• Update • Photo Album
• Place
• Playlist
• Product
• Review
• Service
• Status
• Video

9. VERBS & • Add Friend • Article
OBJECTS • Check-in • Branch
• Close • Comment
• Commit • File
• Created • Folder
GitHub • Edited • Group
• Follow • Issue
• Fork • List
• Join • Master
• Open • Note
• Post • Page
• Pull • Person
• Push • Photo
• Resolve • Project
• Save • Service
• Share • Status
• Tag • Video
• Update

14. VERBS & • Accept • Article
OBJECTS • Add Friend • Badge
• Answer • Comment
• Ask • File
• Award • Group
StackOverflow • Follow • List
• Join • Note
• Post • Person
• Revise • Photo
• Share • Question
• Tag • Status
• Update • Tag
• Video

15. VERBS & • Add Friend • Article
OBJECTS • Check-in • Comment
• Follow • File
• Join • Group
• Post • List
StackOverflow • Save • Note
+ GitHub • Share
• Tag
• Person
• Photo
• Update • Status
• Video

16. The Activity Streams format has already been adopted by Facebook,
MySpace, Windows Live, Google Buzz, BBC, Opera, TypePad,
Gowalla, Gnip, Superfeedr, YIID, and many others.

17. “History is written by the winners”
—George Orwell
Tribune, 4 February 1944

18. I’m on a horse.