Here are some ways to make a difference to the world, using Tim Berners-Lees as an example: A World Wide Web of Ideas.
My take on the key concepts are:
Altruism – giving something away returns far more, and enables more people, in the long run.
Influence – a personal story attracts more attention than the best message-managed PR gloss.
Freedom – the freedom to explore ideas is a powerful force of change.
Connection – social networks are not necessarily what they promise to be, yet. We are only seeing the beginnings of the power of these connectors.
Care – we have the tools and the freedom to share ideas. It is now time to give a damn about honouring our ideas and our truths. And speaking them.
Fun – having fun is a an indicator of living our truths. Don’t put it off.