Hey, i started learning about networks when i was playing with settings on my laptop. I discovered ad-hoc networks. Basically if you dont know hoe it works iv'e got built in woreless in my laptop but you can get an adapter, and ive got the internet from my moderm by an ethernet cable. I can connect to wireless and lan at once, and you can share the internet from the sending laptop. The only downside is that you have to keep the sending laptop turned on to receive it all the time. what you can do aswell is printer sharing, hard drive sharing (personally i have an external har drive), you can share music, pictures documents, you can even access other programs. I hope this helps you and feel free to ask me questions.