A group called anonymous is fighting them (some of these videos may be offensive, Anonymous is not Christian group, they are just trying to educate about the COS - Warning):
http://www.youtube.com/watch?v=JCbKv9yiLiQ
http://www.youtube.com/watch?v=cg2XSeWylYE
http://www.dailymotion.com/SA-Anonymous/video/7341208
Beghe's video - "bad" language WARNING:
http://www.youtube.com/watch?v=DZvmvlZM1gw
I don't condone some of the things that the Anonymous group says or does, but there general idea of peaceful protest (with masks, so they are not targeted for "fair game"), seems to be effective.
one note that I read about recently on this issue (the masks) is that the V for vendetta masks that are usually used; there has apparently been a huge purchase of them from the COS, for resale), so that they can target (fair gaming) the purchasers as being part of the Anonymous group.