Where is the mod folder?

I've downloaded Minecraft Forge for Minecraft v1.6.4 and I can't find the mods folder! Where do I look? I've looked in my Forge folder but it wasn't there!

You can find your Mod folder here:

C:\Users\\[username]\AppData\Roaming\\.minecraft\mods

.. and here is a useful resource that covers some more of the basics:

If you're on a Mac, your mods folder should be located at:

~/Library/Application Support/minecraft/mods

Simply use ⌘ command+shift+G in Finder to openup the Go to the folder... window. Enter the path above in there and press Go. You should now be in your mods folder.