Ask.fm - Curious? Just ask! Openly or anonymously.
Confessout - Anonymous messaging web app.
Peing - Collect anonymous questions with SNS!
SocialFun.xyz - Receive anonymous messages from your friends, co-workers and Fans. Find out what people loveSmiling face with heart-shaped eyes / hateFace with thermometer about you!
Tellonym - Tellonym is the most honest place on the internet.
Whisper.sh - Whisper is the best place to express yourself online. Connect with likeminded individuals and discover the unseen world around you.