Alternatives to PayPal?

Who's using what? Who's got critical mass? Is critical mass even necessary for web-transacted minipayments? Is it safe to keep accounts at more than one of them? What features are better than others? I'm leery about having one directly access my bank account, less leery about credit card access. I guess it's a discussion of what I want it for, isn't it? Ease, anonymity, disconnection from credit card, disconnection from social security number, disconnection spender from earner?

Kurt's Kustom Firearms is using YowCow. Never heard of them until looking up alternatives to the AR-15's direct-impingement gas system---Kurt offers one, BTW.

And this, in a nutshell, is why I want something other than PayPal---it's none of their business what I buy using their service. If they want to restrict what I can buy, I won't use them. I still get their emails, and my emailed complaints about that policy go unanswered.

BitPass looks good, eGold looks even better but it's not really meant for micropayments. For cryptanarcholibertarians, eGold must be the shizzle.