If by 'What website is for Minecraft?' you mean 'What website do you play Minecraft on?' than the answer is simply Minecraft.net :)
It doesn't mean anything specific 'in Minecraft', it is short for Major League Gaming.
'Pocket Edition', it is Minecraft for iPads and smartphones.
To open the Minecraft .jar file on a MacBook Air, locate the file in your Applications folder, then right-click and select "Open With," choosing "Java" or another compatible program. To install Minecraft mods, first ensure you have Minecraft Forge installed, which allows for mod compatibility. Download the desired mods, then place them in the "mods" folder located in the Minecraft directory (found under ~/Library/Application Support/minecraft). Finally, launch Minecraft using the Forge profile to enjoy your mods.
What do you mean by this? If you simply mean have minecraft on more then one computer then of course you can. As long as you have a valid account you can download minecraft onto any computer.
Hold shift
Play minecraft
It cannot be "made" unless you destroy a block, creating air in its place. Otherwise, it is just another term for the lack of a block in the minecraft world.
if you mean minecraft servers well they are hosted by different people any one can host a minecraft server.
If you mean the box you purchase it in, there is no box, you can only buy it from minecraft.net, and if you mean crafting a box in minecraft, it can be as big as you want, there is no determined size of a box in the minecraft community
If you mean to buy minecraft, go to Minecraft.net and click the big orange "Get Minecraft!" button. If you mean on a server, it depends on which server you go to. Most servers have websites.
Assuming you mean Notch, he is the creator of minecraft. His real name is Marcuus Person.