Free Website Load Testing

UPDATE (September 14, 2011): This site is no longer an EnkiBlog but hosted on tumblr.

Load Impact is a freemium web service for stress testing websites. The free test gets you a test suite of 10, 20, 30, 40, and 50 concurrent clients with an average user load time for each. Going up to the paid service yields some cool features like viewing individual objects, more states, higher load testing, etc.