Keep Working Your Internship, Even After It Ends

If you've already left your internship, it's not too late to send thank-you notes and build your network, said Marilyn Mackes, executive director of the National Association of Colleges and Employers. Send the people you worked with an e-mail or letter that acknowledges their contributions.

If classes have already begun, mention something your professor is discussing that strikes a chord with an internship experience. Or share pertinent case studies or other information with your former supervisor.

Katie Funk of the Corcoran Gallery of Art suggests watching the developments at your summer employer and looking for reasons to return -- for a visit or for more work.