"In the United States, home of the biggest space industry in terms of employment and revenues, the most recent FAA study on the wider national economic impacts of the US commercial space activities has shown a rather stable multiplier ratio since 2002 (FAA, 2010). In 2009, for every dollar spent commercial space transportation industry, USD 4.9 resulted in indirect and induced economic impact. Using the same modeling techniques as the ones used for the aeronautic industry, the results show that many economic sectors may be impacted by commercial space activities, as they provide goods and services, directly or indirectly, to the space industry. In 2009, the Information Services industry was the most affected group in terms of additional economic activity, earnings and jobs, generating over USD 65.4 billion of revenue, over USD 15.3 billion in earnings, and creating 213 230 jobs (Table 14.1)."
Just reading through the 2011 Space industry report I linked earlier.
It's here if you want to read the rest.
Otherwise I managed to get a short free tutorial on software optimisation from Rick. :) And I think tomorrow I will recap what I already know and continue with the tutorial that I was doing. I was getting into working with arrays.