Can you name some free vpn ?

I am curious why u want to use vpn. In China we use VPN to login those foreign website that are not allowed in China.I think only China have this phenomenon. My English is poor,never mind.

hotspot shield is the best software and vpn service you can find. their usage is unlimited but they block much of flash site except youtube and hulu which are legally runed. for all the other site flash is blocked, but they have great protection towards malware and is the best company you can find with reasonable cost - free or one time pay.

I don't think you know what a VPN is. It's like a secure virtual connection that allows other people not to see the data that is being sent to and from a server. It used mostly in server workstations however you can make your own VPN if you have at least two computers.