Casentino Sviluppo e Turismo
- Consortium of local business and authorities to promote the area. Historical details on the various towns, itineraries, lodging, events and other useful information for visiting.
- http://www.turismo.casentino.toscana.it/

Ecotouring Tuscany
- Offers biking, walking and horseback tours in the Casentino area. Description of organized activities and services, with costs and contact details.
- http://www.ecotouringtuscany.com/

Casentino.it
- Presentation of history, traditions and itineraries of the Casentino valley between Florence and Arezzo. Also has accommodation and restaurant listings.
- http://www.casentino.it/