OAuth
I had been trying to decide what to do with comments. I like to give the ability to people to make comments but I just did not want to deal with keeping track of people's username, passwords, etc. Furthermore, I absolutely abhor CAPTCHA or anything of the sort. I got to thinking about using something like OpenID. The main problem I have with that is adoption. I don't want to make it hard for people to comment, but I don't want to deal with user info. Then I read Chris Shiflett write about using Twitter for comments and I knew that was the key for me.
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