We just published two new social patterns in a new category, called Presence (under People), in the Yahoo! Design Pattern Library. The two patterns are Availability and Updates.
The Design Pattern Library is a collection of guidelines for the design of online interactions that can aid decision-making and guide the work of web developers and designers.
I've been studying the concept of "Presence" (often meaning remote presence - telepresences - or digitally mediated partial presence) for about five years now, with an eye toward a possible unbook on the subject some day, and I was able to flesh out a handful of presence patterns for the social patterns project and Yahoo! Press book.
These two patterns emerged from that process and carry within them the work of many Yahoos. The Availability pattern is derived from the work of ex-Yahoo Matte Scheinker and the Messenger team, and the Updates pattern leans heavily on the work of Barry Crane and the Vitality platform team.
It's not always easy pairing social patterns with useful code examples or resources but with Updates I'm excited that we're able to offer crosslinks to three relevant Yahoo! APIs (Updates, Meme, and MyBlogLog) and an emerging open Atom extension (Activity Streams).
Likewise, for Availability we've got a code link to the Yahoo! Status API.
We always hope for feedback on patterns, which you can supply here on this blog post or in the forums for the various pattern categories (in this case, social patterns).