For that matter, I've done internships at two of the companies on that list, and currently work for a third. The full-year-equivalent for my intern salary was

For that matter, I've done internships at two of the companies on that list, and currently work for a third. The full-year-equivalent for my intern salary was ~$80k, at both. (Counting housing stipend.) However, at least in my field (geoscience), an "intern" means someone who has already completed at least a B.S. and is currently enrolled in a graduate program. You _can't_ do an internship as an undergraduate. It's not uncommon to have interns in their 30's who have >10 years experience with very similar work to job they're doing as an intern. (To be fair, it's also common to have people who are doing very unrelated graduate work and have no experience with what they're doing as interns.) At least in my case, I had already completed a B.S., M.S., and was a few years into my PhD at the time. At any rate, keep in mind that a lot of these internship programs don't allow undergraduates. I'm not saying they're not cushy (they are!), but they're basically 3-month paid interviews.