Your network should include people who are willing to give you information about their fields as well as feedback on your career development. Your network should also include people who may be in a position to tell you about job opportunities that are open either within their organization or elsewhere.
Your current network includes professors, fellow students, staff on campus, friends, family, co-workers, and Seton Hill alumni -- all those people with whom you have contact and who might be able to help you connect with an organization. Be sure to let your entire network know you are in an internship or job search -- you never know where the most fruitful connection will exist.
Don't forget to meet with your Career Advisor-- they want to help!