is there any way to unblock a certain site?

Your IT department is going to win on this one everytime, I'm afraid. Not only do they have the software to block this website from the server/firewall level, they probably also have software to monitor what sites you're visiting. So, even if you were to find a way around the block they'd find a better way to block it. I'd get used to having to view this site from home. Sorry :(

You are going to want to find proxy sites such as:

http://substitutesite.com/

use a search engine to find proxy sites while you are at home (your IT personnel have probably blocked websites that list proxy sites).

Proxy sites have a tendency to get blocked by IT departments also, so you will probably want to find "fresh" proxies every once in a while.

Will find you won't be able to do this without knowing the way they have done it! Best to give up they work at keeping you from these sites its their job so if you get round it they will most likely try finding another way to keep stopping you! Plus in the end you could get fired! I know so haha! :P

Tip... have you tried veiwing it by searching it on google.com and clicking a link to one of its pages! Might get in that way! Depends on alot though!

um... i think you can unblock it just go to setttings and change it

but if it's blocked by one of your personnel at work, there might be a reason for it

for example, if it's porn LOL

but yeah definitely you can unblock it, just go to settings and when you see "block" change setting there, orjust delete your favorte website from the list of blocked websitse

You could either use a proxy or access whatever is blocking it and unblock it.