While the warning (below) is from the top of the site's page, all of the links that I clicked on to check worked. The images are broken though, but don't use that as an indicator that you cannot find what you are looking for.
Area 51
"NOTICE: The page below has been permenently FROZEN as of January 2000. Due to resource limitations, this section of our website is no longer maintained, so some links may not work and some information may be out of date. We have retained this page for archive reference only, and we cannot vouch for its accuracy. Broken links will not be repaired, and minor errors will not be corrected. You are responsible for independently verifying any information you may find here."