Discussion about slack vs wiki vs forum

Slack

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• instant real-time blah
• can add images easily
• notifies on changes
• can use on phones etc easily

wiki

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• permanent data store
• can add rich, stylised, heirarchical, formatted, organised "website" content
• also "anybody can edit it" and it is maliable.

forum

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• a kind-of-halfway house, where medium sized chunks can be added. Does not suite short replies (due to formatting and presentation), also "conversations" go off track, and you get way too many threads which under/overlap and require moderation.
• [1] - not really active

google group

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• not really active
• [2]