Wikis are collaborative websites where visitors can edit anything they want, anytime they want. Essentially online "whiteboards," wikis allow groups of people to create documents and projects together. Internet forums, also known as message boards or discussion boards, are web applications that provide online discussions. Like wikis, your forum can be private, password protected, and monitored by you. But unlike wikis, the threads and posts cannot be edited by other participants. In this article, the author discusses how he was inspired to incorporate these technologies into the science classroom. (Contains 2 resources and 4 online resources.)