BrainKeeper | Provides knowledge management tools. Prices based on the number of log-ins required.\n\nClearWiki | A hosted wiki that enables users to search within common file types like PDFs.\n\nEditMe | Hosting service provides custom wikis for a monthly fee but no marketing services. \n\nPaux | Free, Java-based open-source software that is similar to a content management system.\n\nMediaWiki | The free software Wikipedia uses for its websites boasts lots of features and can support high traffic.\n\nMoinMoin | Another free application. Users can get help from MoinMoin developers.\n\nSocialtext | Provides "wiki appliances," or dedicated boxes, for deployment at customers' sites as well as hosting wikis in the company's data center for a few dollars per user per month. Services include marketing the wiki to users.\n\nStikiPad | Simple enough for small-scale purposes but can be customized for big projects. Price is based on \nstorage capacity, with an entry-level allocation of 30MB available for free.\n\nWetpaint | A free hosted wiki that's easy to learn and edit. Some wiki users say it's good for first-timers.