While a lot of JSTOR content is free, not all of it is. However, there are other ways to get JSTOR articles for no direct cost.
1) Your local public library may subscribe to the database. (Current Oregon Statewide Databases available at eligible public libraries. Some public libraries have additional database subscriptions.)
2) JSTOR Register and Read program (currently in beta).
3) College and university libraries usually subscribe to JSTOR. If you don’t have access to these collections, use the Oregon State Library’s virtual reference service L-net (soon to become Answerland) to request a JSTOR article.