Hola (free VPN proxy)  
 http://hola.org/

HTTPS Everywhere 
 https://www.eff.org/https-everywhere

TOR Project 
 https://www.torproject.org/

What is TOR and should I use it ?
 http://lifehacker.com/what-is-tor-and-should-i-use-it-1527891029

SafePlug (hardware device) 
 http://www.technologyreview.com/news/521676/online-anonymity-in-a-box-for-49/