If it merely a wiki you want to make and wikpedia is too much of a hassle maybe wikia.com is a good alternative.
"MediaWiki is a web-based wiki software application used by all projects of the Wikimedia Foundation, all wikis hosted by Wikia, and many other wikis, including some of the largest and most popular ones.[1] Originally developed to serve the needs of the free content Wikipedia encyclopedia, today it has also been deployed by companies for internal knowledge management. "
Maybe something to look into.