The Computing Community Consortium (CCC) has a website for Computer Science Undergraduate Research and Graduate Education (CS URGE), which can be found here. You will find explanations, resources, summer research opportunities and more, targeted at undergraduate computer science students.
One of the opportunities highlighted on the Summer Research Opportunities page is The Department of Energy (DOE) Office of Science’s, Office of Workforce Development for Teachers and Scientists (WDTS) Science Undergraduate Laboratory Internship (SULI) program. In this program, students perform research under the guidance of laboratory staff scientists or engineers. In addition to their summer opportunities, SULI also offers 16-week lab research experiences in DOE labs during the school year. Applications for the spring semester have just opened and must be submitted by October 1, 2013.