I've been in Europe traveling around for the last ten days. It's an exciting time for me to visit because Facebook is at a really interesting point here. Millions of people are already using the site on a daily basis, but it's also just the beginning. Lots of these places are at a tipping point where more than 20 or 30 percent of their online populations could be on Facebook within the next year or two. It seemed like a good time to spend some time with users and developers in Berlin, Munich, Paris, London, Madrid and Pamplona, to talk about Facebook and learn how people are using it in their lives. My trip has included some talks at universities, visits with developer groups and a bunch of press interviews. I've enjoyed hearing at each stop about people discovering the ways that Facebook can help them stay connected and share with their friends.

The stories I've heard from people on this trip are similar to the stories I heard from people at home when we first made Facebook available for everyone. A Spanish developer told me how she reconnected with her cousins in Latin America – something that may have not been possible if our users hadn't translated Facebook into Spanish. In Paris, a group of people in the Marais district organized a neighborhood protest against the filming of a TV show in their district. In the UK, Cadbury brought back the Wispa candy bar after thousands of users campaigned for it on Facebook.

When we first reached 100 million users we were all really excited – it was a big milestone for us. This trip was a good chance to see how the next 100 million people are already using Facebook to create events, add photos, join groups and share their lives with their friends and family.