The best way to find research opportunities is to contact a professor directly. For example, to find someone in the BME department, go to either the primary faculty or program faculty profiles on the BME website, or the Research Lab Overview website. Read up on what kind of research is going on, when you find something that interests you, contact the professor, via email, phone or direct contact. Make sure you have read about the professor's work in depth, perhaps even attempting to read a research paper or two. If emailing the professor, make sure it's a professional email that demonstrates that you have read up on their research. A "Hey, do you have any spots in your lab?" email is sure to be instantly trashed. You might have to be persistent to find an open spot, but persistence usually pays off. Faculty typically do not advertise that they are looking for student help in labs, so it is the student's responsibility to find a position.
FAQs
Frequently asked questions about undergraduate research can be found at:http://www.undergradresearch.gatech.edu/questions