Just thought of another one - The Spark!
Remember The Spark, creators of Sparknotes, second only to Cliff's Notes for college cramming for the lazy; groovy tests (the forefathers of the online tests you see today) like The Death Test, The Purity Test, The Wench Test and The Unintelligence Test; and the now-infamous Date My Sister Project?
The whole site was run by a guy named Christian Rudder, and he wrote all these goofy tests and came up with the Date My Sister Project where he took pictures of actual dates his sister went on and put them online for the world to see. He did The Stinky Meat Project where he hid pieces of beef and fish in his neighbor's yard and took picures of him finding them, and he narrated all this stuff with a really witty, anarchistic attitude like The Onion.
Speaking of The Onion, The Spark had news stories written just like The Onion's, and although The Spark and The Onion were contemporaries, I don't think either would accuse the other of stealing their gig.
Christian left The Spark when it was bought by Barnes and Noble (yes, that's why you find Sparknotes in B&N), and now is an actor and musician in his own band, Bishop Allen.
Did anyone else ever go to The Spark and take any of their tests?
B&N still has some of them up
here, but you have to register to take them now. Losers.