Hmmm... I'm thinking in the (hypothetical) creation of an altcoin with a max supply of 500 million coins. Should be plenty without falling on either "too little" or "too much" side of things.
Maybe with a premine of 1% (5 million coins) for bounties, rewards, airdrops, and kickstarting things.
Coin to be used by at least two marketing sites, one browser videogame and potentially one blogging platform and maybe one casino.
Sounds better, worse, the same as most altcoins being pushed these days?
Thus far these questions are only research. Trying to establish plans for a half decent altcoin. Not expecting to make the next big thing, but at least make it valuable within a community with at least some use.
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... and if you are stuck then you can always use bitcoin as a reference. it has 21 million, so choose either than or a smaller number unless you think your coin is going to be used more than bitcoin!
The thought crossed my mind, but in the end I think that making 21 million coin supply or less can be a double edged sword. Could potentially give the impression that I am trying to equate this new altcoin with bitcoin on a 1:1 ratio and many may find it "scammy" or maybe even "pretentious". Just my thoughts, though.