Webrangers is developed by a team of NPS rangers, education specialists, and program subject matter experts. The University of Maryland Human Computer Interaction Lab Kidsteam under Dr. Allison Druin has done formative and summative evaluations, as has Grunwald Associates and NetDay/Project Tomorrow. Flash programming and development is provided by d'Vinci Interactive.
Webrangers is aimed at children ages 5 - 12, although the program apparently has pretty broad shoulders. There are 94,000+ registered WebRangers who have created a WebRanger name and Ranger Station. More than 4,000 have completed all 50 activities and have received their WebRanger patch and congratulatory letter in the mail. What's more, the overall growth of the program has been spectacular. According to independent audience measurement firm Compete, Webrangers' unique visitors and number of visits increased by more than 500% from July 2008 to July 2009 (increasing even during summer months when most educational sites are in decline) before a traditional August drop-off. This