“Over its entire history Google has repeatedly demonstrated that nothing it creates is sacred or immortal. The list of Google products and services that were introduced only to be unceremoniously discontinued later would fill a small phone book.
“The primary reason behind this shuffle of products is Google’s unswerving commitment to testing. Every product, and every change or innovation within each product, is constantly tested and evaluated. Anything that the data show as not meeting Google’s goals, not having sufficient user adoption, or not providing significant user value, will get the axe.