You can now search magazines through Google Book Search.
I came across this intriguing title from the June 1872 issue of Popular Science: "On the artificial production of stupidity in schools." And I thought this was a recent problem.
One of the cool things about google digitizing magazines is that it captures the entire magazine, not just the articles (something many expensive databases do not do). This might not seem so awesome today, but think about how curious it is to see ads from fifty, even one hundred years ago. Such primary source material gives you a unique perspective on history.
Read more about it here.