Camping's version of: Airbnb
Best if you're: New to camping, looking for unusual lodging and add-on activities or searching at the last minute
Numbers: Offers 392,118 public and private campsites in 50 states
Drawbacks: Quality can vary wildly; don't expect every spot to look like a national park, even if the pictures show otherwise.
Also: Some Hipcamp hosts offer extras, such as honey-making classes, photography tours or baskets of farm-fresh vegetables.
Camping's version of: Getaway
Best if you're: Seeking solitude with your camping crew without the hassle of packing gear
Numbers: 860 camping locations
Pricing: Signature sites start at $100 for two to 12 campers.
Drawbacks: Website search functionality is limited; fewer offerings in the West.
Also: Tentrr is giving away five two-night stays to health-care workers every month. Nominate a health-care worker at tinyurl.com/y66fcoc5.
Camping's version of: Yelp
Best if you're: A regular camper looking for ratings, reviews and community
Numbers: More than 44,000 campgrounds; 1.2 million user-submitted reviews, photos and tips
Pricing: The Dyrt PRO is $35.99; you can try it free for a week.
Drawbacks: It can take some time to navigate the site and understand what it can (reviews and ratings) and can't (booking) do.
Also: If gamification is your jam, you'll love the Dyrt's contests; you earn points for posting reviews of any campground you've ever visited.