Yeah, you need to go through a broker, you cant just get them off ebay. Are they even listed, i'm not sure.
I don't think buying shares of google is a good idea right now.. I'm not an analyst but their stock is valued too highly currently... best to steer clear of the tech stocks.
If you don't know how to purchase shares of GOOG, it's probably not a good idea to do so. Learn the fundamentals first!
If you do not know how to buy stocks in the first place, I would not recommend buying them at all. You couldn't possibly know how to do proper research.
My advice is to call a broker. Call someone that is an expert in the field and rather than buying Google, they'll ask you what kind of buyer you want to be. There are some people that invest a couple hundred dollars in the stock market more for fun than for a business. They walk away making maybe a few hundred bucks but that is all. They will then tell you what to stay away from and what to invest in. Brokers want you to make money because if you make money, they make money.
Google stock costs $460 per share. It's not like most other stocks , where you can get them from anywhere from a penny each to $40 each.