Finding data and what to avoid
EVERYWHERE
Much of it is hiding in plain sight
Use freely!
Use with Caution
(Read the ... ahem ... documents)
Things like the "best" cities or the "safest" towns
Provable info
Approach with skepticism
Talk to someone that knows the data you are seeking/looking at. All of these databases were built by people — find them.
Academic experts also often work extensively with data. They can warn you of potential pitfalls, problems. Look for people who have written about your data.
Hint: Look for the name of the system NJ uses to log this information to find a pathway to this data.