Dipity is the service that powers that Internet Memes Timeline I linked to the other day. Here it's showing the gigs Stuart has been to. I am liking the potential of this a lot.

Interesting TechCrunch analysis (I didn't know TechCrunch did analysis, I thought they just did news) on what makes Twitter work. I'd agree with a lot of this.

" Twitter works and enjoys such strong attachment because it provides real-time access to a well-defined audience. The backlog of all previous tweets is a guarantee of permanence (you can even search it) and you can catch up on it anytime. As a result, people use Twitter because they have an idea of who will see their lightweight messages and this sense of audience is reinforced by @replies, re-tweets and references in future conversations (online and offline).

"Designing for the sense of Audience is a powerful tool to create cohesion and a sense of utility among users of a service. This lesson from Twitter can apply to many other services too. But before leaving the current discussion, it’s helpful to look at a service that has missed the full power of Audience so far."

"will transform a vanilla installation of WordPress MU into a social network platform" using a bunch of currently being developed plugins. Hmmmmmm. This could be really good for internal group blogs.

An open source wiki program mentioned to me in a random smoking conversation last night. Looks interesting as an alternative to MediaWiki.

Suw Charman-Anderson on relative measures of failure now startup costs are so low for social media.