There are a great many web sites devoted to astronomy and astro photography and I can't claim to be familiar with many of them, but here are a few of my favorites:
As the name suggests, this is sort of a blog for astro photographers. Click on "User Journals" and look for entries from "airydisc" to read about my adventures in astro photography. It includes discussions of equipment and techniques as well as actual astro images.
RCA is a large astronomy club in Portland, Oregon. Joining RCA was my first important step in learning about astro photography. Unfortunately, the best part of the site, the forum, is only available to members.
CN is a popular and useful site for astronomers. In addition to a wide range of articles, equipment reviews, and forums, there is a "classifieds" section for astronomy equipment. There is another classifieds site for astronomy equipment that is much larger, but it is so badly mismanaged that I will not even mention the name here.
"APOD" is Astronomy Picture Of the Day. Check it every day and you will seldom be disappointed. In addition to excellent images, there is always a lot of information about the subject, including extensive links for further information.
David Haworth, a fellow member of RCA, has a terrific web site containing years of collected images and information on both astro photography and visual observing.
Here are links to some of my favorite digital photography sites:
Of these, I think 'dpreview' has the most accurate and complete technical information on digital
cameras. They also host some lively forums divided by camera types and
makers. SLRgear.com has excellent reviews of cameras and lenses. It is the best way I know to evaluate a lens without actually using it for a month.
For some really informative and detailed discussion of various technical issues related to photography, visit: