I am comtemplating buying a new boat after the 1st of the year.  Is there a site to look up the values of used boats/motors?  Similar to the Kelly Blue Book or NADA book for trucks.  Thanks in advance.

NADA.com for boats.   Just be sure you read all the notes and don't take their prices real serious.   Sometimes they are priced with the motor and trailer, sometimes just the boat.   A better source is to look at a Boat Trader for your area and get a feel for what they are asking, then figure on dealing down from there.

Boat Trader Online has a 'price checker' feature where you can basically do a very specific nationwide search (specifying years, length, make, etc.) and pull up all current ads matching your criteria. That way you can see how your boat price compares to what others are asking across the country. Keep in mind, that will show asking price and not necessarily selling price. Some people think their 10 year old leaky tub with faded gelcoat is still worth 90% of a new one.  :

Go to Boat Trader Online and look down the left side menu for 'price checker'.