I gave a talk to U3A Mountfort on the 1st October 2008. The slides and links from the presentation are below.
I mentioned the Wii game system as a recently popular way of integrating computer games with physical activity. Apparently Playstation has similar kinds of games.
Google search tips: if you know the exact phrase you're searching for (e.g. a line of song lyrics), put it in "inverted commas". If you want to search for the fruit variety of apples, not the computer, then use the minus sign, e.g. apples -computer
We talked about the web's ability both to disseminate misinformation and to correct it -- a good site to check for the truth about urban legends and conspiracy theories is Snopes.