Update: Until I find a more stable way of including the list, it's gone. Damn.
Ok, so if you look in the left sidebar on my weblog, under the "most recent photoblog entries" block, you'll see what I am listening to in iTunes. Rather neat, methinks.
How this works quickly:
The audioscrobbler "app" runs in the background on my computer and tells my last.fm profile what iTunes is playing. last.fm provides an RSS 1.0 feed of the last 10 entries. With a bit of PHP, I grab and parse that RSS and display the list here.
Now this is only the tip of the iceberg! last.fm allows me to have a little "player" which would allow you all to actually "listen" to what I am listening to. (This is the feature I think you want me to implement for you, right Joi?) Also, once I have provided it with enough of an "idea" of what I am listening to, it will start suggesting stuff I may like to check out. Also, seeing stats on what I am listening to is way cool for me, but also for you. Gives you one more look at "me".
Of course, i didn't really need to know that Joi's favorite artist seems to be The Smiths... ;)
Anyways, furthermore, if you start digging in the stats, as more people join up and "populate the database with data", you get a VERY interesting picture of what is popular...
I agree with Joi. This is not only way cool, it is damn smart. These guys are sitting on something HUGE.