I was searching and I didn't find any help or description of the topic.   Specifically I was searching the differences of Super User and Unix &amp; Linux.  Where is the information of the topics of each Q&amp;A site?
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What's the difference between , , and ? In general, what's a rule for deciding where to post a question when I have one (which might apply to any of those 3)?  If I'm having a problem with Linux Mint, which seems likely to be the same in Ubuntu, is it appropriate to post it on Ask Ubuntu?
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I've just asked six questions on , and one has been referred to this site.  Looking closer, I realized that this meta site is not just for Stack&nbsp;Overflow, as it seems from its name.  I think I'll need to transfer a couple of my questions over here.  Why are the two metas (the one for Stack&nbsp;Overflow and the one for all sites) merged into one instead of being separate?
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Some  I'm going through has a boolean switch on whether or not a user is a 'system' user or a 'normal' user (defaulting to 'normal').  What is the difference between these two modes of user-ship?  I don't need to learn what a user is or why you need them (even 'fake' ones), but this particular distinction isn't intuitive to me.
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Stack Overflow, Stack Exchange, Area 51: What's the difference in a nutshell? I've read the faq's and they all seem to be the same to me - Just Q &amp; A on a variety of topics.  What's the difference in a nutshell? If I have a software engineering question, which site is best for me to use?
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I frequent many of the SE sites, but sometimes I have a question on a topic that doesn't fit into any of the sites I've already used.  I find it difficult to find the right site (if one exists at all) for my new question. For example, I have a question about ipod functionality.  I'm not sure where to post it, so I looked at all the sites on the bottom, but didn't see anything.  I was on fitness.stackexchange.com at the time, and all of the links for different sites are blue, and they are in no order (or at least no order that I can tell) so it's very hard to parse.  I was looking for something like &quot;apple&quot; or &quot;iOS&quot; but didn't see it. Then I went to the main &quot;directory&quot; (or what I think of as the main directory) -  - again, this is very difficult to parse.  &quot;Bubbles&quot; are different sizes, and again in no specific order.  The only thing I could think to do was to actually do a text search on the web page for &quot;apple&quot;, and it wasn't there so I gave up and came here to ask. The worst part is that once I came here (meta), I glanced at the bottom of the page and immediate saw &quot;apple&quot;!  This link wasn't on the main directory, and wasn't in the collection of links on the other SE site (fitness).  So it was completely luck that I came to meta to ask this question, and the apple site happened to be in the links at the bottom of this page. Am I missing something?  Is there an easier way to find the list of SE sites?  And in general if I have a question, what's the best way to figure out what site to post it in?
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I want to ask some funny things (humor questions) but I don't know where. Is there an appropriate Q&amp;A site in Stack Exchange?   Maybe not only humor, but we all known memes. Why don't have a site about new science called "Memology"?
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I am currently doing some electronics and microcontroller programming, and I have a couple of questions to ask the people here.    Most of the questions are regarding wiring on breadboards and components.    On which of the websites (Stack Overflow, Server Fault, or Super User) should I ask these particular questions?
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Sometimes I want to learn about a new programming related issue—topics such as DB ORM, search indexer, identity providers, logging, etc.  When I don't know anything about a subject, I ask for benchmarks or comparisons. I got some serious answers like links to tests, pros/cons, and Gartner's reviews. I found these very constructive and helpful. But then the question was blocked or deleted. Sometimes this happens even before I get an answer.  So where would it be more appropriate to ask questions about third party products and/or open source frameworks with which I am completely unfamiliar?
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My motivation: I wasn't sure where to ask a question about the GnuGPG tool - should it be Stack Overflow, or Server Fault, or Super User?  Ultimately, I decided by searching for "GPG" on the three sites and seeing which had the most questions with the highest votes.  Could a tool help with this?
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Where do I ask questions about the Windows operating systems? Be it Win 8, 7 or XP.  The questions that I want to ask may not be strictly related to a problem I am facing, but related to files and features of the OS itself or asking just because of my curiosity. For example, I want to know the purpose of the file "Bootvid.dll" in a Win 8 OS.  Or, for example, I want to what "hal.dll" is.  Are these questions appropriate for Stack Overflow or Super User? If not, please recommend some SE sites in which I can post such questions, because I am interested in getting into the guts of the Windows OS. Open to all suggestions.
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Often times I will ssh into a new client's box to make changes to their website configuration without knowing much about the server configuration. I have seen a few ways to get information about the system you're using, but are there some standard commands to tell me what version of Unix/Linux I'm on and basic system information (like if it is a 64-bit system or not), and that sort of thing?  Basically, if you just logged into a box and didn't know anything about it, what things would you check out and what commands would you use to do it?
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I've looked at this site for the first time today. I've checked , the  and the  and searched, and I don't seem to be able to find an answer on this site.  These are the closest I can find:        Reading the first few responses, I'm perceiving quite a difference in scope between 'user experience' as a concept and what I see discussed as 'User Experience' on this site and elsewhere, and I'm definitely interested in opinions addressing this.  Also, while I appreciate the field is broad, maybe there are some human interactions that definitely aren't UX - between two of them face-to-face, for example?
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What is the very fundamental difference between Unix, Linux, BSD and GNU?  Unix was the earliest OS, so the term 'Unix like' is understandable, since they have kernel, file system structure, most of the commands, users etc are same as Unix.  Still why are they different? What made them set apart? Is it the kernel?
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I'm rather interested in getting my feet wet at the interface of  and . Can anybody give me references to some good books on these topics? I'm looking for very introductory technical books.
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There is much overlap between the SO, SF and SU sites.  For instance, questions about shell programming are programming related (since they are about programming), about system administration (because they manage the shell) and for single users too, if they want to script their computer.    I suggest allowing questions that overlap sites to be posted to more than one site simultaneously in order to:   avoid duplication between sites get answers from all 3 communities.   I suggest that the answers be visible on all relevant sites, and that any votes apply to all relevant sites.  Edit:  For instance, questions about VIM have appeared in SO (637/222780 questions) and in SF (17/8142 questions).  VIM is a valuable tool for programmers as well as sysadmins.  Where do such questions belong?  I didn't review all the questions in SO but the ones in SF could easily be in SO as well.  How about Perl?  9/8142 on SF and 1772/222780 on SO.  If you're a sysadmin but not a programmer, Perl is most certainly relevant.  These are two cases where there is overlap.  I'm sure there are many more.  Edit: Here are some good examples of questions on SU that are relevant to SF and SO as well:       Edit: Here's another example of such concerns:
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The  has this text:     This site is all about getting answers. It's not a discussion forum. There's no chit-chat.   It's probably an oversight and copied from the regular site tours. Can it be reworded/removed?  Right above that text, there's this:      So each community has a meta to discuss site-specific issues, and Meta Stack Exchange is for conversations about problems and ideas that affect the whole network.   Don't they contradict eachother?
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Is it still a thing? I don’t think I’ve ever seen it.   Ask Ubuntu: 264 Meta SE: 81 Linguistics: 56 Area 51: 51 (spooky!) Super User: 33 Unix &amp; Linux: 3 Stack Overflow | User Experience | Bicyles | Video Production | Music: Theory &amp; Practice | Retrocomputing | Genealogy &amp; Family History | Joomla: 1