Curious to see how many DP forum members are google stockholders? And did the use of AdSense/Adword/Etc get you interested in the company first and then you became a shareholder or was it the opposite? I myself became a shareholder prior to becoming an AdSense participant. Researching the company helped me understand the unerlying business which propel me to take part in their ad game.
I own some GOOG, and was an Adsense publisher at the time I purchased my first shares, but that wasn't why. It was the impressive history of earnings growth and overseas prospects. Earnings from Adsense are significant for Google, but don't come close to the $ from their core advertising revenues. Adwords pays 100% gross revenue to Google, Adsense pays 15-30%.
LOL! stocks are not mobile phones which you can buy from a website. You need to visit online share broking websites to do that. You can buy google shares only if you are in US.