Any Online bluebook for shotguns?

I want to value my stevens and ERA shotguns, even asked at "shotgunworld.com" and nothing...yet...is there a value catalog online?|||Try doing a search for it on Gunbroker.com. It's a site where people sell guns and stuff so it may give you some idea of a guns worth.|||best source as mentioned would likely be Gunbroker. Dealers have an online source based on the Blue Book you can purchase for $25.00 the Dealer site is for FFL licensed dealers.|||Not sure, but try shotgun news.