Q1
The same way as any other computer. It depends on what type of Internet connection you have. If you what marketing people call a DSL/Cable Router, then plug into it. Netbooks have an Ethernet port. They also have USB ports for connecting using a USB Cellular radio.

Q2
See Q1

Q3
Correct

Q4
Yes these connect to the Internet. You would need to pack a UTP patch cable, commonly called a Cat5 cable.

Q5
Yes.

Q6
Depends greatly. The trend is toward wireless and free, but not always.

Q7
They work great if you have a strong signal. There is increasing us of these in rural areas where other high-speed options are unavailable.

Q8
Depends on where you are. Many airport clubs have printers. Fedex/Kinkos have printers. Hotels have printers.

Q9
A netbook is a netbook is a netbook. Buying a computer these days is like buying a head of lettuce, just select whichever one looks and feels ripe.