Instafact Go - A fact on every page 作者： Instafact

Instafact Go is an unobtrusive way to learn about interesting facts while you are browsing the web.
With Instafact Go, you will get a new fact (with source) on every page you visit.

New facts are added weekly.

- Tagged: Discover facts you like through tagged facts.
- Sourced: Facts are vetted and sourced for you to learn more.