free web hosting provider atwiki provide free wiki hosting.WYSIWYG entry composer. supported.@Wiki is FREE wiki hosting service. You can publish anything instantly and multiple people can edit your content.You can use a wiki to keep notes and share ideas among a group of people

A lot of features!

• It's Free! 
• WYSIWYG entry composer supported
• Selectable Edit-mode(WikiText or WYSIWYG or text)
• Multi-language support(English, Chinese and Korean)
• Password Protected Posts
• File uploads and Easy Importing
• Stop sending mass emails to everyone
• Instant publishing and Multiple authors
• Archive your thoughts
• Easy to sign in
• Full user customize and administrate
• RSS feeds