Daring Fireball: A Liberal, Accurate Regex Pattern for Matching URLs:
\b(([\w-] ://?|www[.])[^\s()<>] (?:\([\w\d] \)|([^[:punct:]\s]|/)))
Various recommendations that have come to me via email. Dear BLOGGER checker, I am a REAL PERSON, see one of the drafts where I have given you my phone number to reach me.