Al Mohler, the president of Southern Baptist Seminary, is no fool. So when he says that if you are not using the social networks wisely then for the under-30s you don't exist, it's wise to take him seriously. Watch him here and read him here.
That's why I just spent about 1/2 hour starting up a facebook page for the French church. We have a website that we hope will soon be brought up to date. The church council gave me the job of creating the facebook page, and I wanted to get it done before going to the UK soon. That way we can add other administrators and it can be kept basically up to date and become a useful means of folk finding the church and of communication.
FAC, the student outreach, now has a professionally built website. The English Service already has its website - a simple noticeboard made with Blogger, but it works and enables people to find us. There's also a Facebook page for the English Service. The Chinese group are present on the web and on the Chinese Facebook equivalent.
It's work in progress, always.