Nepal Quake contains more links to several organizations helping quake victims in Nepal in many different ways. See if one is right for you. Or check out the UN information:
Two days ago the United Nations activated MicroMappers, which is a crowdmapping site that was developed in conjunction with the UN and the Standby Task Force. The system works by presenting either a Tweet or image from locals in Nepal on your smartphone, and requesting you respond by pressing a button associated with a choice on your screen. The idea is that the responses are aggregated and the data are presented to the UN for action. The images and tweets are geo-tagged, so if enough people independently rank damage, the response managers have a better idea of where to send their resources.
To learn more and see how it works – go to https://micromappers.wordpress.com/ Both Android and IOS are supported and require an app for your smartphone.