Where

=Hosted wiki sites=
 * [|Wikispaces for Teachers]
 * [|PB Wiki For Education]
 * [|MediaWiki]
 * [|Wikia]
 * Zoho Wiki

Compare them with WikiMatrix at @http://www.wikimatrix.org/compare/MediaWiki+PBwiki+Wikia+Wikispaces+Zoho-Wiki



[|Wiki.com] (a custom search engine for searching wikis)