You've gotten my Hell Yeah!
I've made a google news alert for illegal immigration. I go through a lot of articles a day, and register to a lot of sites just to post comments.
I make sure my comments are not rude, offensive or anything that can be characterized negatively by nativists/anti-immigrants/conservatives.
I try to remain reasonable, rational and sensible even though it's tempting to spew hate right back.
I'd encourage you guys to do the same. It will influence the grassroots, the American public on the fence who read these articles.
Although we also need to bring this to the larger scale, keeping in mind that the focus of this effort should be on convincing legislators.