I Added Wireless Internet to My Mac PowerBook G4!
I got a Mac PowerBook G4 laptop from Craigslist but it didn't have wireless internet. I needed to buy and install an Airport Extreme Card in order to get wireless internet access so I came to iFixit looking for one. I found one and bought it.
My package from iFixit arrived at my house quickly and with the online instructions provided from iFixit.com I easily installed it myself. It works great and I don't have to connect my ethernet cable to my laptop to get on the internet!
I recommend iFixit.com for any Mac owner who is interested in adding an Airport card to their computer to get wireless internet access.