Enterprise Wiki

Enterprise Wiki is a wiki used in a corporate (or organisational) context, especially to enhance internal knowledge sharing. Depending on the size of a corporation, wikis may add to or replace centrally-managed content management systems. Their decentralised nature allows them, in theory, to disseminate needed information across an organisation faster and cheaper than a centrally controlled knowledge repository. Wikis might also be used for project management (better collaboration) and even marketing purposes (wikis for customers).

Socialtext

Socialtext is a collaboration platform that allows everyone to work on the same page. It allows users to edit within a simple WYSIWYG interface and you can also preview while editing and comment on any page. Socialtext provides both a hosted service and a hardware / software appliance for installation. Deployment options are designed for range of organizational needs: Enterprise, Professional, Personal and Open Source. The basic account is free [edit]

Confluence

Confluence is an enterprise wiki that provides: Enterprise security, Simple installation and management, Attractive, user-friendly WYSIWYG interface, Powerful tools for structuring and searching your wiki, Professional features such as PDF export and automated refactoring, An open API for extension and integration [edit]

PBwiki

PBwiki Small Business Edition is perfect for small businesses and small teams/groups in larger companies looking for an easy, secure way to collaborate at work. Plus, you can make and use a PBwiki as easy as a peanut butter sandwich – no IT required, but if your IT department needs reassurance, see our IT White paper. [edit]

Zoho Wiki

Finally, a Wiki that is as easy to use as a word processor. It's a Wiki + WYSIWYG Editor + Fine Grained Access Control. Create Groups. Add, edit and share contents among your group [edit]

Google Sites

Google Sites (from Google Apps) makes creating a team site as easy as editing a document. Use Google Sites to centralize all types of information - from videos to presentations - and share your site with just a few people, your entire organization, or the world. [edit]

Zoho Notebook

Create, Aggregate and Collaborate on multiple types of content online. Embed content of any type from multiple applications. Keep track of changes not only at the book or page level but also at the object level. [edit]

Nuospace

Edit pages in the browser. Document management. Search across and inside. Engage your colleagues. Users access control [edit]

ClearWiki

ClearWiki is feature rich, yet extremely intuitive and easy to use. While most wikis have no inherent structure, ClearWiki has structured content. Your data is stored in its own unique database, enhancing your security. Secure all your traffic with HTTPS encryption. A backup option lets you download an archive of your wiki. [edit]

37Signals Writeboard

Writeboard is a web-based editor that enables you to write online documents and collaborate with colleagues. You can subscribe to documents via RSS to be notified of changes and keep your writings organized with Backpack integration. Writeboard requires Internet Explorer 6.x, Safari, or Firefox and it is free to use. [edit]

StikiPad

StikiPad is a hosted wiki solution that gives you an easy way to organize your information and share information with others. We run completely in your browser with no downloads and easy administration, letting you take your StikiPad wherever you have access to the Internet. But don't be fooled by the word easy - it's only as easy as you want, and as powerful as you want it to be. StikiPad is like a blank piece of paper - you decide what you're going to make of it. [edit]