Since running my first blog project, I've managed to participate in four others from various blogs (and now I'm working on a fifth). My most recent writing project was with Antonio Marques at his Words:Irrational blog. He's running his project a little differently, and I won't be posting my writing here (though he wouldn't object to it) — you have to go to the Words:Irrational site to read it.
Basically, he posed the question “What Photography Is/Means To You?” and stated that he would be getting ahold of several photographers to ask for their thoughts on this. He contacted me, and I was happy to participate. If you're interested in giving your thoughts on the topic, head over there and drop Antonio a note. I know I'm curious to hear some answers from other photographers!