These social services are currently available on BuddyBlend.
TubeSpy is a web based spy that allows you to see what videos are being watched on YouTube right now. YouTube has a widget like this on their homepage and TubeSpy was an effort to turn that widget into an app. TubeSpy takes advantage of the Google Ajax Language API to enable support for 11 languages besides English.
Our del.icio.us spy application allows you to see the latest bookmarks being added to del.icio.us so that you can find great new sites. The application also includes links to help make it easy to share what you find with others.
Our Bury Recorder application records all buries on Digg that are made available in the digg spy. Buries are recorded and stored for atleast two weeks and are accessible by the story's URL. There's also a feature that graphs Diggs vs Buries for a story using the Google Chart API. Finally, you can even view Digg's most buried stories through this application.