I am trying to find an article on how much a Grid Computing or Grid Computer system costs?

I am trying to find an article on how much a Grid Computing or Grid Computer system costs? I have cost on Cloud and Virtual costing. I search for Grid computing cost and  it displays 11,400 articles, which is too much to filter. How can the search be narrowed?

Thanks,

Michael

As the technology advances and user base grows, grid computing will advance beyond researchinstitutions and find its place in the commercial sector, in need of supporting the service-oriented...