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__      ___| | ___    __ _ _ __   __| |  _| |__  
\ \ /\ / / | |/ / |  / _` | '_ \ / _` | | | '_ \ 
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here is a few pices of software to setup your own wiki

free wiki software
mediawiki a wiki that is very popular and has extension(wikipedia uses this software) link
pmwiki a simple to install and use wiki software link
dokuwiki a wiki that requires no database link
tiddlywiki a lightweight wiki that saves into single html file link
tikiwiki a wki with a lot of features link

here is a few pices of software to setup your own imageborad/textborad

free imageborad/textborad software
vichan a imageborad script with many features link
kareha a bbs script similer to to 2chan link
lynxchan a imageborad script that runs on node.js link
emanon a improved version of tablecat imageborad script link
tinyib a lightweight imageborad script link

places with lists of more wiki and imagebord software