Influential internet rights pioneer John Perry Barlow has died, aged 70.
Mr Barlow was a co-founder of the Electronic Frontier Foundation (EFF) that campaigns on digital rights issues and was a director of the organisation for many years.
He was an advocate of free speech and wrote about the net's potential for making society more representative.
Mr Barlow also spent years writing lyrics for the Grateful Dead rock group and also ran a cattle ranch.
Bob Weir, one of the band's founding members, tweeted that Mr Barlow would "live on in the songs we wrote".
