[nraynaud]

to add a precision to your post: and most IBM and HP's employees are billed by the time. Headcount is proportional to market size.

Google employee's time brings no revenue per se. Headcount is independent of market size (the only limiting thing is customer support whose max is O(log(customer)), and we are talking about google ...)

[statusgraph]

Why is customer supporter log(n)? Seems it would be nlog(n) (because of management overhead)

[nraynaud]

community support + services companies when you're big enough.