Petpet Protection League, of online virtual pet game Neopets

Python (programming language)

Product placement, in marketing

It can also mean "people", especially on the internet and in mobile txting.

Planet Puzzle League, video game

Pokémon Puzzle League, video game

Pakistan Premier League, of football

People, in Internet Slang

Freedom People's Party

Pre-Paid Legal Services, Inc.

PPL (utility), Pennsylvania Power and Light

Privately produced law, akin to polycentric law

Private Pilot License, in aviation

Pure Prairie League, American soft rock and country rock band

Phonographic Performance Limited, British music industry organisation

Pay per lead, method of marketing

Pakistan Petroleum Limited

Polymorphic Programming Language, in computing

PCBoard Programming Language, proprietary script language for the PCBoard BBS software

Pontypool and New Inn railway station, Wales; National Rail station code PPL.