A WebQuest, according to Bernie Dodge, the originator of the WebQuest concept, "is an inquiry-oriented activity in which most or all of the information used by learners is drawn from the Web.” In a typical WebQuest, students are provided with links to online resources and are asked to use this information to answer specific questions or to solve a presented problem. You can find some examples of WebQuests at WebQuest.org and you can easily create your own using tools such as Zunal or Sqworl.