Twitter's projected 2013 turnover, according to leaked reports - £960m
Michael and Xochi Birch, joint profit from Bebo sale - £373m
Price paid by ITV for school reunion site Friends Reunited - £120m
.NET developer at MySpace, average salary - £61k
Police bill after teenage party listed on Facebook became a riot - £10k
Customer care agent at MySpace, salary - £9k.