These are all free VPN choices that are pretty good in speed,protocol choices alot offer PPTP and openvpn
and some have pretty good privacy policies for being free and alow alot of different types of traffic.
http://www.securitykiss.com/ (has 300mb a day free hosted in UK,US and germany)
http://ultrasurf.us/ unlimited traffic and US IP+easy to use windows program but is some type of
http/https proxy hybrid but does use encryption through and through.
http://www.tunnelbear.com/ gives you like 500MB of traffic free every month but its good quality
http://proxpn.com/ one of the few free VPN's that works for mac users out of the box, is slow and
low grade encryption but easy to use.
http://hotspotshield.com/ probably the most commonly used, Has a shitty ad supported service you get spammed
with banners in your browser.Has a easy to use program windows+android and maybe others but logs
everything and not value privacy much at all.
http://www.acevpn.com/free-ace-vpn-service-invite/
https://cloudnymous.com/ good VPN service with some privacy allows 1 hour free everyday
https://www.your-freedom.net/?referer=3495151 commonly used in alot of countries to unblock sites
http://www.vpnbook.com/ one the popular and good ones
http://expatshield.com/ a sister company of hotspotshield that sucks less
http://kep.md/bWdb good service
https://www.versavpn.com/ good service offers you alot for being free
http://spotflux.com/ UK servers, free for mac,windows, android and IOS has some malware blocking features
one the best free VPN choices by far
https://hide.me/en/ 2GB a month romania and netherlands
http://cyberghostvpn.com/ A good one but , free accounts are given 2GB a month but A free one month premium is included if you subscribe to their email newsletter