here are some posts about online communities that I find very good for one reason or another
(Not a full list, no particular order, mostly from the running list we keep at @capiche. screenshots in this thread are their quotes, not my notes)
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If you're the CEO of a fast-growing startup, the mistake you'll make in the next year that you'll regret most will probably be a hiring mistake. Possibly hiring someone established, which you'll feel you should do now you're getting big, and which VCs will strongly encourage.