With this social network, I thee wed
Is it possible to organise a wedding just using Facebook and Twitter? The announcement, the invitations, the arrangements for the big day itself - can these all be orchestrated via social networks?
Mark Hillary and Angelica Mari tried to do just this for their wedding in December 2010.
The BBC's technology correspondent Rory Cellan-Jones joined them for the big day to see how well their virtual plans translated to the real world.