Unsolicited, unwanted SMS / text message (... a portion of the URL has been obscured here for the purpose of this post). Uncertain, but possible the individual(s) got our number from Craigslist:
"Hi, My name is Patty. if you're interested in trade, please check my ad: http://southdakota.ucoz.org/nnnnnnnnn.htm +cash ?"

Blocked number and reported.