Schwab is mailing this magazine to me (actually to my mom) for free. But don't see if or where it's getting archived. So I'm putting the links that I managed to find here.
It used to be called OnInvesting, but has been retitled Onward. There's a few issues I found in pdf form, but it also looks like (most of?) the articles are also online, though they're not really attributed to being in a particular issue.
Five Retirement Planning Myths
Time In, Not Timing
Summer 2014 (couldn't find the entire issue online, but found this article which was in the magazine)
Awash In Data