The Secretary concluded, "I also want to mention a way that American citizens can contribute to this relief effort. Using your cell phones, you can text the word 'SWAT' 's-w-a-t' to the number 50555. And you will make a $10 contribution that will help the UN High Commissioner for Refugees provide tents, clothing, food, clean drinking water, and medicine to people displaced by floods. When prompted, reply with 'yes' 'y-e-s' to confirm your gift. I just texted a contribution myself, because we know from our own experience, particularly in Haiti, small donations can add up to make a big difference. And Americans have always shown great generosity to people facing crises worldwide. So I urge Americans to join this effort and send some much needed help to the people of Pakistan."
http://blogs.state.gov/ap/index.php/site/entry/secretary_remarks_flooding_pakistan(I think this is a great idea to show the people of Pakistan our concern at this incredibly perilous time. Made my $10 contribution yesterday. You do not need to respond other than to reply YES to confirm your gift.)