I’ve been contributing a lot to OSM for my local area, and have added a couple dozen businesses, and updated a dozen more. It’s pretty easy, and I’ve really been liking OrganicMaps on mobile for directions and whatnot.

For others: if OSM kinda sucks in your area, you’re not SOL, you can add whatever it is you’re missing. It’s easy and IMO pretty fun. Give it a try!