To access block website just use a Proxy websites this allow to bypass the ISP anc connect to the target web site using a different IP
Internet users use proxy websites for various reasons, some to access websites potentially blocked by their colleges or workplace, some use it to test their scripts. I frequently used them to test geo-location ads or to check if DNS are properly propagated when I adjust their settings.
List of Some Proxy Websites:
http://www.hidemyass.com
http://www.wujie.net
http://www.ultrareach.net
http://surfshield.net
http://www.guardster.com/subscription/proxy_free.php
http://anonymouse.ws/anonwww.html
http://www.browser-x.com
http://www.spysurfing.com
http://www.xerohour.org/hideme