Apparently the server my sites are on is having intermittent problems. Sometimes I can reach the site, sometimes not. However, on one attempt I ended up at:

www.mydomain.com.org

which resolved to www.com.org

I freaked out, thinking that the site had been hijacked, but then I noticed a link at the bottom of the page that reads, "Information on how you reached this site."

<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>Occasionally we receive inquiries from users who do not understand why they have accessed our site. Please be advised that you are not reaching our site as a result of spyware. We are not exactly sure why you have been directed here, however, we believe it is a result of the autosearch feature of Internet Explorer. If a site entered into the address bar cannot be accessed, Explorer apparently appends ".org" to the name and then tries to access that site. In the case of a search ending in .com, Explorer thus accesses our domain, "com.org." If you wish to turn off this behavior, we think it can be successfully accomplished by doing the following:

1. From the "Tools" menu, select "Internet Options".
2. Click on the "Advanced" tab.
3. Under "Search from the Address Bar", select "Do not search from the Address bar".
4. Click "OK".
5. You may need to restart your computer.

Please note that this does not solve the problem of why you could not access the original search term, and if that site is still not accessible (due to DNS problems, a server being down, network problems, a typographical error, etc.) you should now receive an error that the page cannot be displayed.
<HR></BLOCKQUOTE>

Has this ever happened to anyone else? I don't recall ever seeing any reference to this domain or the problem referenced.