Here are some links that might pose useful for some. Mainly CS related.

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Counter-Strike - I surely hope no one ever needs to use this link. Suppose you wouldn't be here if you havn't been here. This started it all...

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The WadFather - This site is exceptionally useful to mappers trying to find custom WADS for their maps. Has loads of cool WADS.

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Z_Malloc Overflow - One of the best scripting places out there, good tutorials, good files, good people, great food.

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Skinshack - The ONE and ONLY place to go if you are looking for high quality skins, rated and sampled. No match for this site.

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COUNTERMAP - The ONE and ONLY place to go if you are looking to get into mapping and finding new + upcoming maps! HOT!

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Jesus.com - Funny shit! MUST SEE!!!

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SuperGreg - Funny shit! MUST SEE!!!