I can vouch for the Saugus.net organization. It's been around for a long time and has high standards for privacy protection and child safety. McAfee SiteAdvisor does get false positives, and Saugus.net was apparently one of them.
Saugus.net has a green listing on McAfee SiteAdvisor now, and it's not clear why it ever had otherwise. Not too many pages within it accept e-mail addresses, they're optional when they are accepted, the option to keep them private is always presented, and even when they're designated to be public they're always obfuscated (and Archive.org shows that they've been being obfuscated for over a decade).
I'm biased because I founded Saugus.net back in early 1998, but really, the organization has maintained such a public anti-spam policy it's been targeted by spammers for denial-of-service attacks on two separate occasions.