esd is also "electronic service delivery" so beware. There is very little mention of sustainability in the huge Gov't lists. A recent European initiative has no mention of it.
There is open source software out there. We probably do not need it, but we do need to think about a more restricted list of tags then I have produced so far.

How useful are these bookmarks to you?
I'm struggling a bit with the tags. Too many or too few both unhelpful.
I've added 25 more bookmarks today.
I've joined Twine. There are quite a few relevant groups on Twine; Sustainable Living currently at 29, eco-bounty, alternative energy and Sustainable Development & sustainable development.
Want to invite anyone to join?