To get on a website that you blocked, there are two ways to unblock the site. The first is to open your browser, select tool/options/security. Under the security tab you will see four icons, select the one of a circle with a line through it. Scroll down until you find the site you want to unblock and then select delete. If is blocked by your virus program, there was probably a good reason because the program has determined the site is unsafe. Finally, if the site was blocked by a parent or an administrator at work, it is no doubt password protected.