Welcome to "STS-135 The Final Greetings From Mission Control Wave".
This wave, created by Michael Interbartolo from NASA, is a perfect example of Google Wave's capabilities.
You'll find here: text content like on NASA's mission webpage, YouTube videos, NASA TV livestream, Countdowns to importants milestones, ISS Groundtrack map, pictures, and the ability to chat in real-time with other spectators and/or with NASA employee(s), all in one place!
Enjoy!