InstantWebQuest. ‘InstantWebquest is a web-based software for creating WebQuests in a short time. When you use InstantWebQuest, you will not need any of writing HTML code or using any web editor software. InstantWebQuest creates all the necessary files and puts them into the server free.
Hosting is free.
A WebQuest is an inquiry-oriented activity in which most or all of the information used by learners is drawn from the Web. WebQuests are designed to use learners’ time well, to focus on using information rather than looking for it, and to support learners’ thinking at the levels of analysis, synthesis, and evaluation.’
This site includes a link to Midge Frazel’s great list of WebQuest resources: Understanding and Using WebQuests.