Where can I post my modified WAD's?

I modified the WAD for Ultimate Doom and FInal Doom, I replaced the weapons sounds with sounds from Terminator 2. Is there a place to post them here?

That's probably not a good idea. It's better if you just make a sound wad. Get WinTex, if you don't have it already, copy and paste all the Doom and Doom2 sounds to an empty WAD opened in WinTex, and replace them from there.