Here are some links to sites you may find helpful. Some of them
are people we know, some are not. We try to keep this updated, but
many links do eventually go stale. So, if one of these doesn't work,
please drop us a line
and we'll fix it.
If your site is linked here, we'd appreciate a link back. However,
it's not an absolute requirement: this page is for the benefit of our
customers and readers.