How to request for Pokemon GYM or PokeStop

PokemonGO launched has created a phenomenon around the world and a lot of businesses are exploiting and jumping the bandwagon to benefit from traffic created by PokemonGO. Many businesses are launching promotion with relation to PokemonGo trend. How are Pokestop and Gym location determined? A few months back before launch of PokemonGo, Niantic accepts suggestions…