Superuse.org is an online community of designers, architects and everybody else who is interested in inventive ways of recycling. And was initiated by 2012 architects and Suite75. It shows some great and creative examples of products/concepts/buildings/art etc. etc. created with recycled materials. I especially like the notebook sleeves!
I ran into this site reading the ‘sustainable build’ (duurzaam gebouwd) blog. Another great example of sustainable initiatives in the construction industry.