Here are some decent websites that provide listings and ratings of motorcycling roads, mostly provided for areas that NER hasn’t fully explored yet.
General
- MotorcycleRoads.com – Great map-based interface to explore roads in an area. Has many of the usual suspects and can guide you to some gems, but the site is not well-curated so there is a lot of mediocre stuff as well. It is also very heavy on advertisements.
- Best Biking Roads
- Sunday Morning Rides
- Open Road Journey
Region-Specific
Pashnit California Motorcycle Roads – Very well done curated site with tons of awesome roads in the Golden State, along with ride previews.