One of the most successful Catholic sites on the Internet is this social network, designed by a team from World Youth Day Sydney 2008 and the Australian Cardinal George Pell. It's more than three years old, but it hasn't lost it's young and and bold style that initially attracted so many Catholics. It's called XT3, referring to “Christ in the Third Millennium,” it offers ways for young people to connect around the world, that includes Catholics and non Catholics.
The site has around 50,000 regular users who can access a virtual library of videos and podcasts. As well as organizing initiatives and receiving news about youth and religion.
XT3 also updates its users on the Pope and the preparations for the World Youth Day in their feature “iActiv8, The Road to Madrid.” From there you can follow the latest developments, find deals for group travel, or just watch the countdown to the event.
Their online platform making the most buzz is called “Ask a priest.” Where Father John Flynn responds to questions or concerns about life or religion, such as whether or not it's possible for a Catholic to marry a non-Catholic or questions about the importance of attending Mass.
The site has also become popular among individual dioceses by allowing each one to control their own page with updated content by XT3.