Google App Engine 'Free quota levels setto 5 million page views / month'

Intended to continue to offer substantial free application hosting to any interested developer, Google App Engine is now changing free resource quota levels, effective on June 22nd, our target level of free support has been 5 million page views per month for a reasonably efficient web application. “efficient applications avoid unnecessary computation or data transfer, and two techniques […]
Intended to continue to offer substantial free application hosting to any interested developer, Google App Engine is now changing free resource quota levels, effective on June 22nd, our target level of free support has been 5 million page views per month for a reasonably efficient web application. “efficient applications avoid unnecessary computation or data transfer, and two techniques common to efficient App Engine applications are the use of caching headers and memcache. Caching headers in an HTTP response prevent a user's browser from needlessly re-downloading information that hasn't changed, both speeding up the user experience and saving bandwidth. Similarly, memcache keeps frequently accessed data in a memory cache on App Engine servers, rather than always reading from disk in the Datastore, therefore saving CPU usage and Datastore load,” App Engine Blog.