Cattr - Cattr is a free open-source self-hosted time tracker with desktop clients for windows, mac, linux.
Trakstar Performance Management - Trakstar Performance Management is a top-notch solution that makes it easy for companies worldwide to strengthen their people.
TopTracker - Beautiful, free time tracking
Crewmojo - Performance management that doesn't suck.
RescueTime - Time management software that shows you how you spend your time & provides tools to help you be more productive.
Synergita - Employee Performance Management Software