In string theory, one of the many vibrational states of the string corresponds to the graviton, a quantum mechanical particle that carries gravitational force. Thus string theory is a theory of quantum gravity.
Their average web application development cost is around $500K and their staff or contractors' salary is in the six figure plus range. Their proposals are usually based on a lot of fluff with the development rate ranging from $400 - $800 per hour. These types of companies focus on custom development.
According to the Bureau of Labor Statistics, the median pay for web developers as of 2011 was $77,990 annually and $37.49 hourly. The mean hourly wage was estimated at $39.27 and the mean annual wage was $81,670.