No, only when you download them the first time.
NO!
yes as soon as you've downloaded the mods you can play the mods while offline.
You don't need a CD for mods. You don't need a CD for Minecraft at all.
any will load mods onto minecraft but the better operating system the more mods you can have
you can get minecraft mods and textures off the minecraft mods website.
No, you just get them for free
Lots of mods do not need forge, big ones such as: OptiFine Too many items and Better Sprint (all i know of)
To get mod packs you must go to the forums for minecraft. There should be a forum that is for mods and you can find all the mods there. The first mod that you will need for minecraft would be the ModLoader, which is used to load all the mods that you will acquire.
bearshare is not required to get minecraft mods.
Yes, most Minecraft Mods are updatable.
there are no mods in minecraft pe i hope there will be
Getting onto Minecraft Multiplayer is very simple. All you need to do is when you get onto Minecraft you click "Multiplayer" instead of "Singleplayer", "Mods and Texturepacks" or"Options" and type in the Multiplayer IP (which you can get from the Internet or a freind) and click "Connect".