Bios for each of the astronauts who contributed stories can be found on NASA's official biography page. The agency also keeps a list of astronauts who've flown on the shuttle in Acrobat (PDF) format, although it may not be completely up to date.
The mother lode of information about the shuttle is NASA's Human Spaceflight website, which includes everything from photographs to historical reference material to digital sound files of the crew's wake-up calls in orbit.
An excellent and detailed technical reference for shuttle orbiter systems can be found at the Shuttlepresskit site run by the companies that build and launch the vehicles. You can download the PDF document as individual chapters, or as a single mammoth 20 megabyte file.
Want to read more about the payloads carried on STS-58 or need to know the exact landing weight of STS-27? Go to NASA's shuttle mission index, which has exhaustive information for every mission flown to date. Includes links to pictures, sounds, pre-launch press kits, and more.
Following Shuttle Missions
Before the next launch, get yourself a press kit for the flight so you can follow the action with a detailed timeline and summaries of all planned activities in hand. Then tune in to webcasts of NASA TV at Yahoo!, shuttle operator United Space Alliance, or NASA's own site to watch the show online.