The latest stories from the Technology section of the BBC News web site.
Facebook shares see modest debut
Facebook shares end a volatile first day of trading at $38.23, barely above the company's initial pricing, having initially jumped more than 10%.
Met Police to extract phone data
Mobile phone data of suspects in police custody is to be extracted and retained, regardless of whether charges are brought, the BBC has learned.
Silicon trick for next-gen memory
Researchers reveal details of a promising way to make a fundamentally different kind of computer memory chip.
Twitter backs web privacy effort
Micro-blogging service Twitter will support an initiative that lets people browse the web without being monitored.
Anonymous attacks Indian websites
Hacker group Anonymous has carried out a series of attacks against government and political websites in India.