I tend to agree with you Unc ... Twitter is another thing I can't understand ... do you think it's an 'age' thing
I receive emails now and again from Facebooks telling me someone wants me to look at their page ... I simply bin the email ! Then advise the person, who I have normally had contact, and still do in some cases, by email, that I prefer emails.
I have the feeling that social networking is in danger becoming very unsocial networking.