CrowdSpark

CrowdSpark is a public ranking board that starts empty. Users pay $1 to place their name, link, and a short note at the #1 position. Anyone can take the top spot by paying at least $1 more than the current leader, creating a dynamic, ever-changing leaderboard.

Checkout is handled through Stripe with no account creation required. The platform explicitly sells rank placement, not traffic. It's a transparent, permissionless system where position is determined solely by payment amount.