You want 100% privacy on internet?- Well not really possible but here are some VPN-s to cower your tracks:

1. OpenVPN – Free VPN client
OpenVPN.net is a SSL/TLS based VPN, it provides high security and privacy. The biggest difference between PPTP VPN and OpenVPN is you need install OpenVPN client software to use OpenVPN service, and OpenVPN DO NOT work on mobile devices such as iPhone, iPad, Windows Mobile and Android. But OpenVPN works on Windows, Mac and Linux.

2. PacketiX.NET – Free VPN client
PacketiX.NET is a Japan VPN service. It is actually a premium service, but they have PacketiX.NET online test service as well which is free to use. The service is fast and reliable and it is easy to use as well. Just download the VPN connection manager, install and connect! It works on Windows and Linux only.

3. UltraVPN – an OpenVPN client
UltraVPN is a French VPN client that hides your connection from unwanted ears and allows you to use blocked applications. It is also based on OpenVPN service. Traffic is quota is unlimited. Bandwidth is up to 500Kb/s depending on network conditions.

4. Hotspot Shield – The most popular free VPN client
Hotspot Shield is possibly the most popular Free VPN client in the world. It made waves when Hulu was launched as it allowed users to watch Hulu even when it was blocked. Now, they have US & UK based VPN services which you can use to protect yourself from WiFi Snoopers, identity thefts and censorships. The best part is, Hotspot Shield provides unlimited bandwidth and works on both PC & Mac.

5. CyberGhost – Free VPN service
CyberGhost is a free VPN service from Germany which helps you route you through a German IP. The free service is limited to 10GB traffic every month, which is more than enough for surfing on websites, chatting and email. The paid service is also affordable.

6. TorVPN
TorVPN is one of the latest entrants into the VPN market. TorVPN is great for bypassing strict content filters, browsing the web anonymously, securing your VOIP communications or remote access to your home/office workstation. With TorVPN you can get an OpenVPN server, SSH access, PPTP & TOR proxy. Free vpn access is restricted to 1GB per month and works on Windows, Mac, iPhone & iPad.

7. SecurityKiss
SecurityKiss is a tunnel service which ensures security and privacy once your data leaves your computer. It redirects all your traffic through an impenetrable tunnel to our security gateway. Everything in the tunnel is encrypted.

8. Your-Freedom
Your-Freedom makes accessible what is unaccessible to you, and it hides your network address from those who don’t need to know. The free service lets you use it for 6 hours a day (up to 15 hours a week). You can either download their software or use the OpenVPN mode. Windows, Mac & Linux platforms are supported.

9. USA IP
For free user, you don’t need to register, just download the USAIP.pbk file, and then double-click on the file and select one of the USAIP PPTP connections. After that, you can access the USA IP free VPN services with the username demo and the password demo. But you will need to reconnect the USA IP network after every 7 minutes.

10. MacroVPN
A new player in the VPN field. MacroVPN does provide a Free VPN service, but it is more like an extended trial. There is a limit of 2GB traffic and 256kbps speed.

Those are my top VPN-s.
Just one thing to remember-You can never have 100% privacy on internet.

Great news. There's nice to hear about free VPN services.