So over the last few days, there’s been so much chat around the roll out of official Twitter lists that some people have probably even blogged about them. Ad hoc lists (aka ‘groups’) have been available for some time on a variety of twitter clients, of course, but now there’s ‘central support’ so it seems like everyone is hyping around them (OMG, OMFG, Twitter has lists. Lists! etc.)

I’m still waiting on the API (though a draft spec has been posted) so I can have a go at creating lists automagically from hashtag groups (various posts), but in the meantime, here are a couple of little toys that try to spot what’s going on within the context of a particular list.

First up, a pipe that will look to see what hashtags are being used by folk on a particular list. The pipe feeds off a list of tweets by list members (using the URI pattern http://twitter.com/USERNAME/lists/LISTNAME/statuses.xml ) and then reuses pipework from Searching for Twitter Hashtags and Finding Hashtag Communities, replacing the search elements with a list feed:

So what? So you can enter the URI