Looking back one, two and five years ago today on Worldchanging:

2009
Nothing for today!

2008
Rehabbed Microhomes in Reno
Julia Levitt praises the work of two women in Reno, Nevada who are making it their business to put microhomes, the super-fashionable and somewhat extremist end of sustainable housing, to extremely practical use...

2005
Ethiscore and Socially-Conscious Shopping
Alex Steffen reports on a new online shopping guide, Ethiscore, that helps you judge the merits of the products that you buy...

Other recent "look backs":
May 20
May 21
May 24