Choose some characters from the mythology of your own country and set up (free) My Space accounts for them. Add pictures and avatars and construct profiles for them. Or construct family trees and friend networks for mythological families
Make cards – or get pupils to make cards – in the style of Top Trumps (which have made a come-back). They can create a generic list of fields/categories e.g. Magical prowess /100 and vote for their favourite.
You can also use ‘recommender’ systems – like the star ratings that Amazon, ebay etc use.