Сервис WHOIS. Узнай свободен ли домен. Проверка работы сайта: DIG, PING, TRACEROUTE, NSLOOKUP. Определение записи PTR.
Ghosttowns.com-the best source of information on ghost towns in the American West. Ghost towns are listed bystate & include biographies, pictures, and otherdetailed ghost town...
Extensive web interface to dig for doing online dns lookup / nameserver query.