What is the difference between wiki articles and site forums?

There is actually no difference between contributions made in forums and those posted in the wiki. However, those who follow the forums regularly know that while a considerable amount of knowledge is stored up in the ProZ.com forums, accessing it is not so easy, in part because of the limitations of the search feature, but also in part because of the nature of discussion forums, where useful information tends to be broken up among multiple posts. 

As it is not as easy to get information out of the forums, and repeated postings on frequent themes, for example, are one of the issues that result, the ProZ.com wiki has been suggested as a potential solution to this problem.