Articles from journals published by Springer Nature, virtually all of them scientific, back to 1997 (though there are older results as well, especially if you can read German). We have full text access to around 1200 titles. But you can also keyword search and preview from another 2000 titles.
Keyword search journal articles, books and reference works published by Wiley, back to 1995. The catch is that it is hit or miss whether we have access to the article, and there's no limiter to only show ones we have purchased access to. If we don't, you can always interlibrary loan.
Note that it is impossible to tell if EWU has the rights to the full text of the article until you try to access it. There is no limiter for "full text only".