Many websites confine access permission to specific countries. If you live outside the US, you may get this a lot.
Hola is the easiest method. It comes in the form of a very intrusive browser extension that is free and easily installed. It is available for Chrome and Firefox. Just click the Hola icon in your browser’s toolbar and select a country. It will route your browsing activity through IP addresses in that country.
Remember, I said this thing was intrusive. If you are a professional investigator, you must always keep the rules of evidence (S. 30 & S. 31) in mind. Your computers must be free of malicious code or code that could change the content of the collected evidence. I always run Hola on a clean machine that is separate from other evidence collection. If you use Hola to collect evidence, then you will have to be a very good Internet Eyewitness.
My first objection to Hola for investigators is that it is only available for Windows, Mac OS X, and as an app for Android devices. It is easier and quicker to create a clean machine with Linux.
Secondly, Hola sends your web browsing through other servers. More importantly, it uses your computer’s idle bandwidth for other users. Sharing bandwidth with other users exposes your machine to outside threats other than the websites you visit. I have seen DNS Spoofing when using Hola that does not happen when using other methods. Unfortunately, you have to prepare for this if you want to route your browsing activity through other locations and not pay anything.
Third, you must disable Hola when not using it. Install it in a separate browser. For example, if you use Firefox for most things, then install Hola in Chrome to access geo-blocked content. When you are finished using Hola, close the browser.
Finally, you must really spend some time rehearsing the visual, logical, and reproducible nature of your testimony. If you do not, then you will not be able to reproduce the process of collecting the evidence in court. Explaining how Hola works is not something I want to do in court if the other side is sharp and scrappy.
Even with all my reservations, I still use Hola, particularly for reconnaissance prior to using other collection methods.