Popular Science magazine has placed its entire 140-year
archive online with free access browsing, according to Southgate Amateur Radio
News. The magazine worked with Google to make the entire collection searchable.
A search on “ham radio” returned 380 results (a search on “amateur radio”
returned 190, with considerable duplication). The earliest is from 1916 and the
most recent is from 2008. Visit <http://www.popsci.com/archives>.