I <3 Google.  Really.  It is chock full of information.

But Google and library databases are very different types of resources.

1. Google calculates the number of times a particular word or phrase appears in a website's metadata;
2. Google uses click rankings (have you heard about the Santorum problem?); and
3. Google accepts $$ to display certain websites on the first or first few pages of results.

The money-making potential for a given topic can seriously skew your Google search results.  

If you decide you'd like to use Google for your initial search, please take this information into account.  When in doubt, use Google Scholar.  Google Scholar searches against patents/trademarks, governmental organizations, and the indexes and contents notes of peer reviewed material.

Library resources have been vetted, whether by professionals working in the field, or by librarians responsible for evaluating material specific to that discipline.  Public, corporate, and academic libraries all offer access to these types of resources.  

Like Google (or Bing, or Duck-duck-go, or Yahoo, etc.), library databases calculate the number of times a particular word or phrase appears in a resource's metadata.  Unlike Google, the results you'll find in a library database are limited to vetted material, are not displayed according to click rankings, and you'll never see advertisements.

You are already busy!  By searching the library's collections, you reduce the amount of time required to ensure the data you find is reliable.