Proxys
A proxy will let you get past a firewall. One of them is Barricuda. Yes, you are all tired of it. So I'm telling you this.
To use a proxy you must copy the link of the page you want to go to. This can be found under the page's name on Google, though some are so long that you can't copy and paste the whole thing. You just simply have to find another way to get to it.
Example: A Youtube video's URL (link) is too long. To solve this, go to Youtube.com and search the video on the Youtube front page.
After copy the URL (link), go to any of the proxies below. Then paste the URL into the bar, and search.
Proxy (For this one you'll have to set your location to the US)
Remember, if a Youtube video doesn't work with one, try the other. If these are blocked someday, search "Proxy" on Google and find one that isn't. Also: NOT ALL YOUTUBE VIDEOS WILL WORK!