Google Scholar is a great place for research, and it's important to remember these things:
You can configure your settings to link directly to resources subscribed to by the Libraries.
Google Scholar determines relevancy differently than databases. Older, more cited articles tend to show up towards the top of your results. This can be very useful in determining the most cited authors in an area, but not as useful for other types of searching.
Google Scholar will find things that databases don't find, like conference proceedings, dissertations, and open access articles.
Use both Google Scholar AND Databases for the most comprehensive research!