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:
.. and here is a useful resource that covers some more of the basics:
When you get forge you first have to launch forge t=in the minecraft launcher when you at the minecraft main screen, after that go to your start for windows xp-7 and for windows 8 put your courser on the top right or bottom right coner then search %appdata% then click on .minecraft and your mod folder is there