Give me an email sometime (in my profile). I may not be available myself, but I'm writing a Job Board for the Northwestern ACM this very moment. I can talk to you about presence at job fairs at Northwestern (probably the most elaborate) to a posting on our new board (very easy, free). I can't offer you a massive CS pool like Stanford or MIT, but I happen to think that our CS program is very good, individually.

Also, I guess I can give you perspective on what you're competing against. I just completed a Microsoft internship this summer and plan on doing another (maybe with Microsoft, maybe not) next summer.