Prof. Enrique Martinez opens his blog to submissions / collaborators:

“Form is now accepting submissions. This blog wants to be a participatory forum about the topic of form in art, architecture, design and everyday life and I look forward to including in it your images and thoughts.

Interested? Send me just one image (jpeg, 1MB max.) and a small text (250 words max.) of anything human-made that you consider formally extraordinary, explaining your reasons or making a statement about it. It could be your work or the work of others; contemporary, futuristic or part of the past; high or low, simple or complex; buildings, spaces, objects, experiments, everyday things, artworks, designs…just one image and a small text, so that we keep it brief for many people to participate.

Send your material to form@muchieast.com with your name, contact information and a few words about who you are, what you do and why are you interested in form.”

Also see his blog about OBJECTS.