What is the process for working with Wholesalers?

[Derek Lamonde]

How do you establish a relationship with a wholesaler? I recently responded to a post on here from a wholesaler requesting information on properties in NJ that meet my criteria. In response I got a request for POFs and a contract sent to me, so I'd like to know if that is the normal way of initiating these type of relationships. Personally, I'd prefer the old-fashioned way of working with someone from the area that I can actually meet with in person but I have not seen anyone posting from the Garden State. 

Are folks comfortable sending POF and entering into non-disclosure agreements with people they've never met? Anyone have a fruitful relationship with a wholesaler they've never met before?