I'm in my third year of a CS degree at a large university and am pushing hard for a good internship this summer.

I haven't had one up to this point, and I'm not an absolute rockstar coder, and I feel like these two things are making me easily fall through the cracks with some of the bigger companies I've interviewed with.

What's your best advice, whether you're a recruiter or have been in my position, for somebody trying to score a good internship?