Wikipedia does not always have the answers :)

Sorry, I fully intended to publish a description, but it turns out at least two of them are the subject of pending patent apps that haven't been published yet, so I can't.

In any case, do note there are a wide variety of wilson variants or alternatives that may be applicable to various situations (agresti-coull, etc), as well as jeffrey's prior bayesian intervals.

http://stat.wharton.upenn.edu/~tcai/paper/Binomial-Annals.pd... is a reasonable comparison of the current common methods.

Anyway, I deleted the original comment since it doesn't add anything now.