So you say you have a lead lucas? try me...
The most important are the city, state, email address (it is in the reply button in CL), craigslist url and who is providing the lead. If you can get the other info great. Some listings have more info.
Did you already forget?
How do you find them you ask? Simple it is. Okay Yoda. Go to Craigslist, select a city, search for "Salesforce" under "Gigs":