Comparisons and advocacy

Moodle as a Knowledge Portal org

moi!!! it is what is is...
Re: Moodle as a Knowledge Portal org
Documentation writersParticularly helpful Moodlers

Moodle has a lot of functionality, far beyond the use you seem to want to put it to. For just a knowledge base, there are tools such as MediaWiki, which powers Wikipedia, or WordPress, which is easily hackable apparently, but can be set up to do what you want it to do. These are the best known open source tools, if all you want is an easily accessible set of information and quick tip type documents. As Derek pointed out there are far more sophisticated tools around as well.   

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