news.bbc.co.uk/1/hi/education/8436236.stm
Aren't we lucky to have people like this telling us that talking is important. To be fair, it does say that the average age for words starting is about 11 months but I don't think that will shake the complacency of people who think it's normal for 2 year olds not to talk. DS1 had no single words til 3 either. If only Jean had been around then.