> TypePad has just shipped PubSubHubbub-enabled activity streams feeds for
> all TypePad users, which include activity by those users across all
> things TypePad.

> Here are some examples:
>      http://profile.typepad.com/apparentlymart/activity/atom.xml
>      http://profile.typepad.com/markpasc/activity/atom.xml
>      http://profile.typepad.com/parishilton/activity/atom.xml
>      http://profile.typepad.com/zacharyquinto/activity/atom.xml

> Fortunate timing allowed me to squeeze in at the last moment some of the
> changes we discussed at the last meetup, including:

>   * We're exclusively using link rel="photo" for userpics. rel="avatar"
> is not included, since I figured the few generic consumers we have today
> aren't doing much with that information anyway.

>   * We're using atom:author for the actor, though we're also still
> publishing activity:actor for the moment for compatibility.

> These feeds are linked from user profile pages as normal,
> auto-discoverable Atom feeds, and they're compatible with
> non-activity-aware feed readers.