I have a question about the ranking/list order in the results at Google. Where should I post my question?
Would it be best on Stack Overflow, Super User or Server Fault?
Questions about how the Google algorithm work really doesn't fit into any of the Stack Overflow sites (SOFU for short) as it's not the target audience or field of capture for the family of sites.
Won't fit here as it's not a programming question. You would need to ask it in a way of how you would create an algorithm like Google has if you were to ask the question at SO.
Won't fit here as it's not about servers or system admin. For it to be, the question might have to be asked like you wanting to work out how to do some load balancing across the servers that are being queried by millions per second. But right now, it would not fit here.
Won't fit here as it's not a computer question. Unless it was about prefences or something other than how your site is returned.
In case you're curious, the answer is because Google uses secret sauce. That secret saucing process reshuffles everything fairly regularly.
Well, from what angle are you asking? As a developer? As a web-master? Or as a user?
If the question isn't directly related to one of these roles... perhaps preview the actual question here so we can make a sensible statement.