Continuing my big link catch-up...
One of the best places to find my environmental writing these days is at Scientific American, where I contribute around 3 "Extinction Countdown" articles a week to their "60-Second Science" blog. I cover endangered species all around the world, including quite a few that aren't getting any press anyplace else.
I'll link to some of my favorite recent articles soon, but meanwhile, here's my main page. Check it out!
60-Second Extinction Countdown @ Scientific American