.sm is for San Marino
Registration web site:
Whois web interface:
Second Level Domains Registered
ICANN records: http://www.iana.org/root-whois/sm.htm
Notes: Rules prohibit deception, obscene language or images, and domains that must never offend the citizens' civil, political or religious believes nor degrade, humiliate or offend the human dignity with their language or subjects. A class of "confidential names" are also prohibited and decisions are made on a case-by-case basis.
Domain Registration Rules: