This site is a great place to check out days before the launch to see hat preparations are going on for the big day. You can even watch video or listen to audio track of previous shuttle launches. As shuttle launch is definitely the main event, but there's plenty of interesting footage to watch online at any given time. NASA TV broadcasts streamed video daily and most of it is available on the United Space Alliance site . The site offers a schedule of daily broadcasts and for any space buff these is a video gold mine.
Video is great to watch but audio tracks are worth searching for as well.
I found a cool track of a Discovery Mission dating back to August 1997 that was worth the download. But the coolest tool out on the web is one we'll only get to use once the shuttle is up in the air. This is NASA's real time data site which will allow us to track exactly where the shuttle is every step of the way. Details on the shuttle's distance traveled, orbit, trajectory and all that other wonder science stuff will be reported in real time at this site. Now that's as close as I'll ever get to actually being there.