Help me test how the algorithms really work

I run real experiments on the algorithms behind search and social. Join the tester list and help me run them.

• Occasional small tasks. Now and then I’ll email you one quick thing to do. Skip any you like.
• Real experiments. Every task is part of a live test, never a survey or a promo.
• Results shared first. Testers see the findings before I publish them, and get credited on the experiment page if they want.