Never pay for an article or book or access to resources.
In most cases (except for textbooks), the Cornell Library has online journals, newspapers, magazines, ebooks and print books, or can get them for you at no charge to you!
Passkey can help you find it at Cornell, or Ask a Librarian.
The best research uses everything, all the tools, and the best tool for the task. But not all tools are equal. Google and Wikipedia have their uses, but when it comes to scholarly research, rely on restricted tools/resources which are superior, have more content, and are free to Cornellians.