- PBworks: Free Collaboration, Intranet, Extranet, Project Management, Business Wiki
If you really can't afford our prices ($20/user/month for Project Edition, $100/year for Classroom Edition), PBworks offers a free Basic Edition.
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- Welcome to Wikispaces - Free Wikis for Everyone
Free: 2GB, max file size:10MB
Wikis are simple web pages that groups, friends, and families can edit together. Starting your wiki at Wikispaces is fast, free, and easy.
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- Yuku - Free Hosted Blogs, Message Boards and MORE!
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