There are a lot of great websites out there for astronomy related information and tips on astrophotography. Here are a few that I visit regularly and find very useful.Texas Astronomical Society
3 Rivers Foundation
Astronomy Picture of the Day
Lunar Picture of the Day
I will try to keep this list updated as I find new ones.
I got emailed a new link from a few students, Jack and Matthew. They got an assignment from their teacher, Ms. Russell to research space and astronauts. They found my website and the following link. Enjoy!