Twenty years is a long time anywhere; in the tech industry, it’s an eon. Over the lifetime of Yahoo, we’ve seen hundreds of companies, thousands of products, and hundreds of thousands of websites and services appear and then disappear.

Yet a handful stand out above the rest. These are the products and technologies that have changed our lives in significant ways. Some had an enormous impact in their day and but failed to survive over the long haul. But most have stood the test of time and continue to affect how we live today.

Here are our picks for the 20 most important products to emerge since the birth of the Internet age.



Send Happy 20th Birthday Yahoo! wishes to Dan Tynan here: ModFamily1@yahoo.com