Mr. Rewrite read an article the other day saying something had peaked someone's interest. Let's take a peek at the usage guides to see why this doesn't look right.
The word in this context is pique, meaning to arouse emotion or provoke to action, among other things. Mr. Rewrite understands why many erroneously think something peaks someone's interest, suggesting a high point. But that's wrong, wrong, wrong.
Here's more on peak/peek/pique from a real expert.
Here are some links allowing you to peek at articles by writers who've yet to hit their peak: