Received text tonight after reposting my CL ad:
"Hi, saw your dog walking services posting- could you do tthis job? (see pics). Need it done asap <<pic>> http://pixsend.org/? photo=150SRT Estimated $ ? Thanks"
Seems this is a common one going around. Found this recent article about it: http://www.pcrisk.com/internet-threat-news/7314-another-craigslist-scam