Resurgence Magazine online has a great collection of projects and resources that are based on the hope for a sustainable world. Example entries:
BIG PICTURE TV
A website that streams free videos of global leaders talking about sustainability issues.
THE WEB OF HOPE
An educational network, presenting achievable solutions to global problems and communication links between individuals and/or businesses with a shared vision of a hopeful future.
CAMBRIDGE ENVIRONMENTAL INITIATIVE
A university-hosted environmental initiative to promote understanding of environmental issues across all areas of research.