anonymous surfing / identity protection - software for windows/ubuntu [closed]

"VPN service providers are the easyest & secure solution. But it's not easy to choose one, they are many things to take in balance:

Level of privacy : Trusted company? Encryption used? Single-hop or multi-country-hop? Not logged? Laws concerning privacy in your country and the countries of the VPN provider and of theirs servers?
Possible limitations : Transfert volume? Open port for hosting or p2p? Shared IP? Only for some OS? Advertisement?
Speed
Prices

Some popular VPN providers:

Free (& limited)

itshidden.com (Netherlands)
cyberghost (Germany)
ultravpn (France)
hotspotshield (United States)
packetix (Japan)
arethusa - s6ndotorg (Spain)

Paid only :

xerobank (Germany)
steganos (Germany)
ipredator (Sweden)
relakks (Sweden)
cryptocloud (Netherlands)
ivacy (Russia)

(I mention the country related to the laws, customer services and servers proximity (but most of the providers have multiple servers around the world))

Some other VPN providers lists/reviews:

myvpnreviews.com
filesharefreak
a google doc (the english version is after the swedish one)

For more info read these threads on wilderssecurity.com: How to choose the best vpn provider - Secure Anonymous VPN (and more generaly this forum is a good source for all the security concerns)

Another (more complexe) solution is to set your own VPN with OpenVPN on an anonymous dedicated server

Note: Even if VPN is the best solution, you will still have privacy conerns:
Do the data transfered between the last VPN hop and the sites you visit could identify uniquely your computer or the program that you use on the net? And worst: could they link them to your identity? For browsers pay attention to cookies, browser id (google chrome), history, cache, java, flash, other plugins, extensions, ..."