Pokec unblocked - Dell Inspiron 1501 Notebook

SOURCE: how to unblock your pokec.sk

This is dependent upon software that is on your system.
If you have a firewall installed such as Zone Alarm you will need to check it's black list to see what programs/websites have been denied.
You may also check your browsers internet options to see what "Blocked Sites" are in the black list.
If you use an Internet Security suite such as Norton, McAfee, or AVG then there is also a black list that could be in effect there.
If you are on a Corporate Network then your Systems Administrator has control over the firewall and you will have to ask them to white list the site for you.