Bonny Beth Elwell, author, historian, genealogist (and one of my distant cousins!), was the guest on the cable TV show "Family Historian." Her episode was entitled "Salem County Sources." You can watch the show online at hometownetv.org at this link: http://vp.telvue.com/player?id=T00331&video=184574. Stephen Conte, the producer of "Family Historian," has been producing this show in North Jersey since 1988.
Keep in mind that most of the sources she mentioned are out of copyright and available free online.
- History and Genealogy of Fenwick's Colony, New Jersey by Thomas Shourds (on Google Books)
- History of the counties of Gloucester, Salem, and Cumberland New Jersey, with biographical sketches of their prominent citizens (Vol. I) by Thomas Cushing and Charles E. Sheppard (Archive.org)
- History of the counties of Gloucester, Salem, and Cumberland New Jersey, with biographical sketches of their prominent citizens (Vol. II) by Thomas Cushing and Charles E. Sheppard (Archive.org)
- Salem County maps (1849, 1872, 1913)
Familysearch.org has the Salem County Probate records (includes Orphans' Court, Probate, and Land Divisions) online for free as well (click here to go to the link for NJ Probate records at familysearch)
You can also check out Bonny Beth Elwell's book about Pittsgrove, Salem, NJ, on Amazon: http://www.amazon.com/Pittsgrove-Images-America-Arcadia-Publishing/dp/1467120286/ref=sr_1_1?ie=UTF8&qid=1391308970&sr=8-1