CleanTech.Org

I'm in the process of rebuilding American Antigravity, which served tens of millions of visitors between 2002 and 2010. We started with a focus on aerospace (hence the name), but quickly branched out to cover all sorts of innovation that just doesn't make it into the mainstream press.

My site, American Antigravity, at http://www.americanantigravity.com, has a magazine-style format and our focus is primarily on interviews related to bleeding-edge technologies.

If you're interested in more of a wiki-style format, check out http://peswiki.com, which is more of a news-format journal run by Sterling Allan.