Google Scholar describes itself as a simple way to broadly search for scholarly literature. From one place, you can search across many disciplines and sources: articles, theses, books, abstracts and court opinions, from academic publishers, professional societies, online repositories, universities and other web sites.
Google Scholar is a great tool for finding open-access (freely available) scholarly journals and digital collections. In some cases, Google Scholar takes you to the publisher's website, where you will be asked to pay.
You should never have to pay for an article and you can change Google Scholar settings to include content NCCC has access to!