Tributes pour in for internet pioneer, Grateful Dead lyricist John Barlow

SAN FRANCISCO -- Tributes are pouring in for an internet pioneer who is being remembered for his groundbreaking work to promote internet freedom.

John Perry Barlow passed away yesterday.

He co-founded the San Francisco-based Electronic Frontier Foundation and was also a lyricist for the Grateful Dead.

Barlow co-founded the EFF in 1990.

The Wyoming native became a fierce advocate for defending civil liberties in the digital world.

Barlow had recently completed a memoir, entitled "Mother American Night." It's due out in June.

Barlow was 70 years old.

Here are some of the tributes and memories shared by Barlow's many colleagues, followers, and friends: