PokeHuntr - PokeHuntr is a website that helps find and identify Pokemon while playing Pokemon Go.
Poke Radar - Discover the location of any Pokemon
Pokecrew - Crowdsourced Pokemon Go map
Pokémon GO - Live Map - Shows live Pokémon in an area, on your desktop
Pokemon Go Tools - Pokemon Go tools & reference charts
PokeHunter - PokeHunter is a live scanner to help you find the pokemon you want, not just pidgeys and rattatas.