removing duplicate values

Hey guys, I'm new here and I have something urgent that needs to be solved.
I'm a webmaster and I received a real messy report from one of my staff.

The goal here is to remove any duplicate "words" from one row to another.
For instance:

A1 | B1 | C1
------------------------------- |-------------------------------------|-------------------
http://dir.yahoo.com |http://video.yahoo.com |http://www.google.com
http://www.google.com|http://www.bing.com |http://www.bing.com
http://excelforum.com/|http://lol.excelforum.com|
http://www.excelforum.com/members/teylyn.html|http://www.excelforum.com/members/seng8.html|


So I want C1 to have unique values only... omitting values that exist 2 times on A1 and B1 cells.
Like for the case of the above illustration, because A2 has the word "yahoo" in it and so is A3... it won't be displayed in C1 cell.

Is there a code in excel to do this? I tried using the "Filter" feature but it didn't help...

That's a tough call.

If http://excelforum.com and http://excelforum8.com count as duplicates, that means you can't even take the domain name as a comparison value?

What are your rules for items being duplicates?

Thanks teylyn!
Sorry about that, there was an error... I've corrected it.

I've also added another value to clarify my question even more.

Hello Seng8,

Welcome to the Forum!

Since you are a webmaster, you are probably familiar with Regular Expressions (PHP, Java Script). VBA also makes use of Regular Expressions. So I leave it up to you which language you want to use. I only know VBA and can help you with that piece. See the use of "back references" to id words or patterns that repeat.