Advertising Revenue Powers Alphabet's Earnings, but Here's Why You'll Really Want to Buy the Stock Now

Alphabet (GOOG -0.19%) (GOOGL -0.17%) has been an excellent growth stock for long-term investors. The shares have soared more than 500% over the past decade, as earnings and revenue climbed into the billions of dollars. All this is due to Alphabet's dominance in something that most of us use every day -- internet search. Alphabet's Google has steadily held about 90% of that market over time, and this position, along with ongoing improvement in its capabilities and brand strength, make …