As even the White House site does, encrypt all petition connections and abbreviate names of signers (initials only or first name plus last initial as you do on your council pages).

People see and want to sign petitions in a variety of places, including school and work - places where their activity on the Web may be watched and used against them. People are also concerned about their names turning up in Web searches supporting an issue that a job or admissions screener may have a strong opposite position against.

This will help protect confidentiality and personal privacy of MoveOn petition signers, creating a safer environment where more people feel they can trust adding their names.