DDR3, you can check with the manufacturer if you're not sure.
If you are moving your current processor into the upgraded motherboard, your current cooling fan does not need to be upgraded.
Your motherboard may need to be changed when your CPU is upgraded.
for home personal use
Yes.
It depends on the motherboard. If your motherboard supports core i3, it is possible, if not it isn't.
When the cost of the upgrade outweighs the benefit of the upgrade.
Take a look at your system motherboard to see if it has an AGP or PCI Express card slot (it will be the topmost expansion slot on the motherboard--your monitor should be connected to the card currently sitting there). This will tell you which type of video card is available to you.
You can't. The processor is usually soldered onto the motherboard in netbooks.
No you can't unless you change the motherboard.
No. You will need to replace your motherboard to get PCI-E.
no,you need a new motherboard!
Check your motherboard or call your manufacturer. Make extra sure before you buy a processor, as many will be incompatible.