Over the weekend I made another script based on the Digg API: "Digg CommentSpy":http://sandbox.sourcelabs.com/commentspy/

This one tracks live comments posted to [[Digg]], ala [[LiveMarks]]. Blue posts are replies to the top thread, yellow are replies to another comment.

I'm now a huge fan of [[JSON]] feed based APIs. These scripts have server code, all the work is done in Javascript. This means that scaling the mashup is all on the remote service, not on my puny server.

If you're using my Digg javascript function, commentspy uses a slightly revised version that allows for 'min timestamp' - I use this so that I don't ask for already seen comments.