Snooki earned her spot on the show due in large part to showing up to her audition drunk. One producer who was there said, "Nicole showed up in a miniskirt, did cartwheels, and her application was smudged with her bronzer."
Season 5 of the show was green lit without the cast's knowledge. MTV negotiated with their agents while the cast was in Italy with no access to the outside world.
Monica Pinto is listed numerous places here for this show but she has nothing to do with it.
The title of the show is "Jersey Shore," but only 4 of the 6 seasons took place on the actual Jersey Shore. If you include "Jersey Shore: Family Vacation" then less than half of the seasons took place in Jersey.
In season 4 when the cast goes to Italy, an infamous episode is when Snooki rear ended a police car. Those weren't just random police officers. They were the security for the cast.