All of them, actually. This Flickr pool was established in honor of October being Breast Cancer Awareness month, and Yahoo/Flickr are going to donate 1 dollar for every pink photo uploaded to the group. (I assume for this month only.)
The money goes to a charity called Susan G. Komen for the Cure.
Oddly enough, I’ve only known one breast cancer victim (now cancer-free), and he’s male- a good old boy, even. Him being a very skinny guy, I was shocked to find out he could even HAVE breast cancer (about 5% of all cases occur in men, I’ve learned) and he fought it for almost a year before his doctor gave him the all-clear. I’m sure he’d get a chuckle out of the pink fund-raising theme.