In a recent meta thread, an entity going by the handle peter.krautzberger suggested site:mathoverflow.net/users as something to help in MathOverflow ninja searches. I immodestly suggest "system design" for the example, although I will be pleased to see any example on the Tips and Tricks page for searching the User pages.
Gerhard "Ask Me About (You Know)" Paseman, 2011.06.10
]]>