I thought this was great! As quoted from their introduction page, "Lifespan.io is a crowdfunding platform dedicated solely to longevity research projects."
They currently have two projects listed. The first one ("MitoSENS Mitochondrial Repair Project"), has already been completely funded, and the other project "The major mouse testing program", is 80% funded, with 14 days remaining. The second project is intended for: "Testing a new class of compounds, Senolytics, on their ability to extend healthy lifespan by clearing out dysfunctional cells in the body."
About the longevity crowd funding site:
About the major mouse testing program:
-Blake