Of course you will start in Google. I do, too. Here's what it's good for:
Wikipedia articles are often really fine introductions to a topic.
Of course, you CANNOT USE WIKIPEDIA IN YOUR OWN REFERENCE LIST. But you knew that.
A gazillion links to other possibly good stuff...
and then you must turn on your brain. Because now you have to distinguish between good stuff and junk.
It's a great idea to start with a subject reference source to get a general understanding of your topic.
Here we get vocabulary, dates, names, definitions, concepts -- all of which make our searching in databases more efficient.