The Office of the United Nations High Commissioner for Refugees has created a great new web portal that gives up-to-date and easy to read statistics, reports and stories of the current drought in the Horn of Africa. The portal offers you the option of getting a regional overview or drilling down to information of specific refugee camps, like those in Dadaab and Dollo Ado. It also gives an bit of information about organizations working within the region.
I would highly recommend checking it out to get a better grasp of the severity of the situation and how people and organizations are responding. I’d particularly recommend checking out the overview of Dadaab and Dollo Ado, both administerd by the Lutheran World Federation (LWF), as well as the page on the LWF.