<p>You can start doing some general research on the Fall semester (perhaps attend some of the company presentations), and then search/apply at the very beginning of the Spring semester (i.e., this semester, if you wanted an internship this summer). You should be getting emails from career services about company presentations and possible opportunities. Also, you search for and apply to a lot of (mostly OCR) internships via PennLink (<a href=“http://www.vpul.upenn.edu/careerservices/pennlink.html)%5B/url%5D”>http://www.vpul.upenn.edu/careerservices/pennlink.html)</a>.</p>