I showed the weusecoins.com promo video to my mom. It presents the concept of bitcoins in an easy to understand manner. She likes the idea and supports me upgrading my system a bit so I can mine on the side.
Also planning to have an online BTC-friendly store, and a site to spread bitcoin awareness.
How i wish that your mom is like my own mother. Yours is very open minded with the idea of bitcoin and my mom is not. When i introduced him bitcoin, i gave him a video and an article about bitcoin, she didn't understand and the the only thing she said is that bitcoin is only a virtual play money and a scam one. It gives me a big sigh.