Xobin - Most Comprehesive Pre-Employment skills testing and Psychometric Assessment Platform.
Limbo - “Dark, disturbing, yet eerily beautiful, Limbo is a world that deserves to be explored.” Joystiq. “Limbo is as close to perfect at what it does as a game can get.” Destructoid. Buy LIMBO: Special Edition.
After Interview - Get feedback from job interviews to improve
Findem - Findem’s Impossible Search lets you find candidates who have the EXACT attributes you’re looking for in a new hire.
Product Management Exercises - A repository of product manager job interview exercises
Higherme - Platform for hiring hourly employees (YC W15)