Doing some reading on the latest outbreak of anti-Eid Stamp hysteria, I arrived at a comprehensive and thoughtful treatment at The American Muslim and it occurred to me how regularly I come across great work there, so I wanted to give it and its editor, Sheila Musaji (who's surely one of the hardest working people in the Islamophere) kudos. The American Muslim is a great resource that collects a lot of the best and most interesting commentary by or on American Muslims, and itself provides insightful original analysis.
And it goes without saying that you should be reading altmuslim, which has long been at the vanguard of Islamic online media.
Of course, there are more. Many more. Any list is doomed to being incomplete, not to mention subjective.
But here are a few for those who aren't already in the know about the "Islamophere".