Many sites are often blocked by ISP for various reasons. Dictators, oppressors, and tyrants often want to prevent opinions they don't like from reaching the public. They then block very popular sites like youtube.com...
Well, they can't actually... There are many sites in internet that'll do the surfing to you and then forward the result to you. Such sites are called webproxy. For all practical purposes, all the ISP knows is that you're accessing their webproxy that's not in their block list. The webproxy then freely surf the other sites. It's like surfing directly. You'll hardly see any different. See some samples here: www.cleanfilter.net www.tidyfilter.com www.fukfilters.com
