peeingreviews.com focuses on female urination only, but it's a broad topic with many sub-genres. The list below isn't all inclusive or official, but it gives a general idea of the different kinds of pee sites that are out there.

Golden Showers

• Lesbian - Multiple girls making love while urinating on each other.
• Straight - Girls urinating on men.
• POV - Girls urinating on the camera as if it were a person.

Public

• Desperation - Girls trying to urinate in public areas without getting caught.
• Exhibitionism - Girls peeing in public and enjoying it.
• Nature - Girls peeing in nature.

Voyeur

• Standard - Girls urinating in home or public restrooms, unaware of the camera.
• NonConsensual - Girls being watched against their consent. Sometimes referred to as "busted" on voyeur sites, to indicate that the observer was caught.
• Consensual - Girls being watched, completely aware and inviting.
• Bowlcam - Girls being watched from inside the toilet bowl.

Wetting

• Accidents - Girls unintentionally peeing in their clothing in desperate circumstances.
• On purpose - Girls peeing in their clothing on purpose.
• Bondage - Girls wetting themselves while tied up.

Porn

• Solo - Girls peeing in front of the camera, following the directors instructions.
• Gonzo - Girls doing weird things while peeing.

BDSM

• Toilet Humiliation - Turning a man into a toilet.
• Submission - Peeing while being dominated by a mistress.
• Domination - Peeing while dominating a submissive.