Wikis in education is a great source of knowledge and a platform to get general information. But it is not a primary source or reliable source for research papers because anyone can add information based on what the person adding the content knows. And information on wikis may not always be correct but i still believe wiki sites such as wikipedia are great tools to get base information for a class or group. Just the ability to add information from different people all over the world who can add in to a certain subject from different backgrounds is just a plus on its own.