Problem-Based Learning (PBL) is the major pedagogy behind WebQuests!
Creators of WebQuests need to know about this Educational Theory.
Here are some resources that you might find relevant: The first site is from my good friend @ CQU, Scot Aldred. Scot is a PBL guru and he has many resources here for you to explore.
Central Queensland University – Scot Aldred’s PBL site:
ACS Distance Education - this site explores the theory and the benefits of using PBL in the classroom.
Medical Journal of Australia: PBL: its rationale and efficacy - getting back to the roots of PBL - Problem-Based Learning in Medicine!
I recently gave these resources to a group of student teachers about to embark on making a WebQuest!
You mightn't go to all the resources listed here but at least you will get the main point of a WebQuest - to give the students a messy problem to solve!