Something I've been toying with the build outbound leads is to utilize LinkedIn to find business owners. Go to LinkedIn search, select People ->

* Connections: 1st, 2nd (I like to do this so a warm intro is possible, or there at least there is a connection to reference when reaching out)
* Locations: Any geographies you want to limit to
* Title: "owner" (since most SMB owners don't use keywords like "founder" or "ceo")
* Profile Language: English (Or any languages you want to limit to)

At the very least this has helped in networking, best case is it will help in sourcing potential deals.