I have been reading a lot of articles in the past day indicating the drawbacks of making donations by text/sms. If that is the only way you would or could give (i.e., you don’t have a credit card etc) then it makes sense, but a direct donation to the relief organizations is a much more efficient way as illustrated below:
What happens to that money next depends in part on how it was given. Mobile phones have been a popular way to give — donors texted more than $24 million to the American Red Cross in the first week — but they’re not the speediest. The donation generally isn’t processed until the giver pays his or her phone bill, which means it can take up to 90 days for the charity to see a penny. (Phone companies have agreed to expedite the process.) Contributions made with a credit card, in most cases, are delivered to aid agencies’ coffers immediately.
Source: TIME MAGAZINE ONLINE