Activity Streams Chris Messina Learning
about the Open Stack for the Social Web December 19, 2008 ☃ Digg, 135 Mississippi St, San Francisco, CA

“Lifestreaming”

Today • Last.fm • Jaiku
• Facebook newsfeed • FriendFeed • etc.

The challenge • Develop a
format for expressing activities • Compelling experiences from activity feeds • The zero-knowledge test • etc.

FriendFeed Services

The Benefits • Staying in
touch across the web • An open, emergent ecosystem • Filtering, search, automation & stats • Optimal, compelling experiences with activities • Coalescing, merging, de-duping • etc.

Examples

last.fm

sweetcron(yongfook.com)

Facebook

FriendFeed

boxee.tv

Movable Type Motion

Eventbox

Anatomy of an activity

Actor verb object [context]

factoryjoe tweeted Niches Bitches! [via
SMS]

Actor verb object {indirect object}
[context]

Chris bought Planet Earth {for
Brynn} [at Amazon.com]

Activities on the Open Web

I visit davidrecordon.com

I decide I want to
follow his activities Sign in to follow Dave!

I sign in with my
OpenID

At my hub, I’m asked
whether I want to follow Dave

I say yes, and am
asked which activity types I’m interested in...

Dave Recordon Worst username evar.
San Francisco, CA davidrecordon.com Contact details Status updates Photos Bookmarks Blogs daveman692 Six Apart Location Music Movies Slide presentations Events Travel Local reviews Books Add subscriptions Your message (optional) Hi there! We met that conference last week. I’ve subscribed to your updates on my site. -Chris Access requires permission from Dave Add contact Inspired by Jyri Engeström

Should any of the selected
types be protected, I will be asked whether I want to request access

If yes, an OAuth request
will be sent which Dave will later be able to approve, deny or ignore

...And Dave’s public activities will
show up in my activities dashboard

...And if Dave approves my
request, his protected activities will show up later

More soon at activitystrea.ms

Fin.
me -› factoryjoe.com