More than likely, once you’re out and working in the "Real World" databases like those the OU Libraries provides will not be available. And that leaves only one place to go - Google.
Google is a great resource for finding free information. However, please be aware that Google may not be able to answer all of your information needs.
Another place to go if Google just isn't getting it done is the public library. Public libraries often provide access to several great business databases. Just apply for a library card. Having a card will not only grant access to books and online materials, but also magazines and newspapers as well as remote access to their databases. If you have a university library in your area, some of them will also allow you to use their resources, although you will likely have to do that at the library, rather than through remote access.