Olmecs

Now I am going to try and find articles about Olmecs.  OK, I found a bunch of stuff on Britannica Online Academic Edition, but I thought somewhere I saw that I could use National Geographic Magazines, and I can't find that now. I tried the link that says magazines, but didn't get anywhere with that and really, it is time for lunch.  Another time, perhaps. And I am hoping this course will just show me how to use it.