scr.im - Don't share your email on public sites.
Paubox - Paubox provides HIPAA compliant email encryption without the hassle of extra steps.
Spamty - Spamty is a web service to encrypt an email address and share it on the internet.
Symantec Data Loss Prevention - Fully protect your data with the comprehensive detection technologies and unified policies of Symantec's industry leading Data Loss Prevention (DLP).
Humans Not Invited - CAPTCHA that filters out humans and only lets programs pass
Microsoft BitLocker - BitLocker is a full disk encryption feature included with Windows Vista and later.