Why Google canâ€™t build Instagram
"1. Google canâ€™t keep its teams small enough... 4. Google forces its developers to use its infrastructure, which wasnâ€™t developed for small social projects. At Google you canâ€™t use MySQL and Ruby on Rails. Youâ€™ve gotta build everything to deploy on its internal database â€œBig Table,â€ they call it. That wasnâ€™t designed for small little dinky social projects. Engineers tell me itâ€™s hard to develop for and not as productive as other tools that external developers get to use."