A friend of mine gave me their old laptop yesterday. It is a Lenovo 3000 c100, Intel Celeron, 76GB HDD, 512mb RAM, etc. I've read on the internet that it has "built in Broadcom WLAN".

This shows up in the Device Manager, but I don't really know what to do with it. I was wondering if there is any way to use this to connect to wireless networks around my house (I know there are a few, my Wii finds various ones), because I don't currently have a WiFi card.

So ya, can I use wireless LAN to connect to WiFi networks?