Not sure how long this has been live but thought I would give it a little plug as it is quite a cool little app from the UK Windows Live team:
“Live Space Vision is a stream of global updates to the Windows Live Space network of local market sites in near real-time. Live Space Vision joins FlickrVision, TwitterVision, and WikipediaVision in the vision map genre. This was achieved by using the publicly available Changes Feed and Virtual Earth SDK.
There is some information here http://windowslive.uk.msn.com/spaces/guides/article.aspx?cp-documentid=8302095, and as it says it can be a great time waster just watching the sites that are being updated and the spinning globe.