| Popular streaming service | 25 |
| Popular story starter | 21 |
| Popular story start | 19 |
| Popular store name | 18 |
| Popular storage spot | 20 |
| Popular storage dump | 20 |
| Popular steak sauce | 19 |
| Popular steak cut | 17 |
| Popular stationery brand | 24 |
| Popular Star Trek convention costume | 36 |
| Popular St. Valentine's Day gift | 36 |
| Popular spy show | 16 |
| Popular spuds | 13 |
| Popular spring break locale | 27 |
| Popular spread in Roanoke? | 26 |
| Popular spot in the 20's | 28 |
| Popular spot for kids' houses | 33 |
| Popular sportscaster? | 21 |
| Popular sports coupe | 20 |
| Popular sports car, informally | 30 |
| Popular sports car | 18 |
| Popular sporting fish | 21 |
| Popular sporting event | 22 |
| Popular sport utility vehicle | 29 |
| Popular sport shirt | 19 |
| Popular sport fish | 18 |
| Popular Sporcle subj. | 21 |
| Popular spicy cuisine | 21 |
| Popular spectator sport that's not in the Olympics | 54 |
| Popular space-saving device | 27 |
| Popular souvenirs | 17 |
| Popular souvenir item | 21 |
| Popular souvenir choice | 23 |
| Popular souvenir | 16 |
| Popular Southern vegetable | 26 |
| Popular Southern breakfast food | 31 |
| Popular South African language group | 36 |
| Popular source of quotes, for short | 35 |
| Popular source of antioxidants | 30 |
| Popular soup or sauce | 21 |
| Popular soup legume | 19 |
| Popular soup ingredient | 23 |
| Popular soup in New England | 27 |
| Popular sort | 12 |
| Popular Sony product | 20 |
| Popular songstress | 18 |
| Popular song with kicks | 23 |
| Popular song subject | 20 |
| Popular song since 1917 | 23 |
| Popular song since 1908 | 23 |
| Popular song of yore | 20 |
| Popular song of yesteryear | 26 |
| Popular song of the '30's | 33 |
| Popular song of 1955 | 20 |
| Popular song of 1926 | 20 |
| Popular song of 1889 | 20 |
| Popular song of '40s | 24 |
| Popular song King | 17 |
| Popular song in the round | 25 |
| Popular song genre on “The Lawrence Welk Show” | 54 |
| Popular song from Broadway's "The Wiz" | 52 |
| Popular song | 12 |
| Popular soft-shoe song | 22 |
| Popular soft-drink flavor | 25 |
| Popular soft drinks | 19 |
| Popular soft drink | 18 |
| Popular sodas | 13 |
| Popular soda | 12 |
| Popular social networking site, and this puzzle's theme | 59 |
| Popular soap opera | 18 |
| Popular soap | 12 |
| Popular snorkeling destination | 30 |
| Popular sneakers | 16 |
| Popular sneaker | 15 |
| Popular snacks that inspired this puzzle's theme | 52 |
| Popular snack since 1912 | 24 |
| Popular snack cracker | 21 |
| Popular snack chip | 18 |
| Popular snack cakes | 19 |
| Popular snack cake | 18 |
| Popular snack brand | 19 |
| Popular snack | 13 |
| Popular smokes | 14 |
| Popular smartphone app | 22 |
| Popular small plane | 19 |
| Popular slogan | 14 |
| Popular sleep aid | 17 |
| Popular sleek-bodied phone | 26 |
| Popular skin moisturizer | 24 |
| Popular skin cream brand | 24 |
| Popular skin cream | 18 |
| Popular skillet spray | 21 |
| Popular skiing destination | 26 |
| Popular ski spot | 16 |
| Popular ski resort | 18 |
| Popular ski country homes | 25 |
| Popular six-second clips since 2013 | 35 |
| Popular site for collectors | 27 |
| Popular sitcom | 14 |
| Popular singing star | 20 |