<A target="_blank" href="http://www.prweb.com/releases/WOT/Web_of_Trust/prweb1611904.htm">WOT, Web of Trust, extends</A> the security protection of its browser add-on to the Internet-based email services - Google Gmail, Windows Live Hotmail and Yahoo! Mail. WOT checks links embedded in email and warns of dangerous websites to help avoid spyware, spam, phishing, identity theft and other Internet fraud.