Optimist International
- Find out about membership, the foundation, events, local chapters, and news.
- http://www.optimist.org/

Optimist International Foundation
- A 501(c)(3) nonprofit organization that provides significant funding for the charitable, literary and educational purposes of Optimist International, a community service based organization committed to creating a more optimistic future for young people th
- http://www.oifoundation.org/