This is cool, the www.whois.sc service will show you the number of times a domain is listed in DMOZ. The format of the URL is www.whois.sc/domain.com. For example (http://www.whois.sc./dmoz/descmath.com shows that my little math site is in the directory. Oddly, this info is hard to find in DMOZ itself. Searching on a domain name does not always return a result. I suspect however that this is only accurate relevant after a directory crawl.