Back in August I linked to Jim Grey's list of photography blogs. At the time I subscribed to nearly every single one with an RSS feed. He has since updated the list a bit so I urge you to check it out.
I've created an OPML file of my photography blog subscriptions which includes most of Jim's list and a few other blogs. I plan on adding the updates Jim has made to his list. This should make it really easy to subscribe to them all in one shot*.
Feel free to update the OPML on Github with more URLs and submit the edits.
/* If you're on the Mac, and don't currently subscribe to blogs, I suggest NetNewswire.