Stack Overflow is for programmers, Super User is for computer hardware & software enthusiasts and power users. You want to ask questions about code, go to SO. If you're having a problem with booting your laptop, go to SU.
Read the FAQs of both SU and SO to understand more.
Stack Overflow FAQ.
Super User FAQ
Does someone own the entire sites, or
The sites are all "owned" by Stack Exchange Inc. All user contributions are licensed under Creative Commons(with attribution required).
are there individual people who think of a topic which could be useful or popular and decide to open it by themselves following some StackExchange rules?
It's not done by a single ...
There really isn't any policy on this. Just note that content is licensed under cc-by-sa, but Stack Exchange additionally requires you to:
(…) attribute the work in the manner specified by the author or licensor (…)
So if you quote (or copy without using visual indication of a quote) content from a Stack Exchange site, you should at the very least ...
User Contributions to Stack Exchange are licensed under cc-wiki with attribution required so there's nothing wrong in copying, assuming the attribution is given
To be clear, attribution required means:
Visually indicate that the content is from Stack Overflow, Meta Stack Overflow, Server Fault, or Super User in some way. It doesn’t
have to be ...
It might be better suited there, but it was asked here.
Unless a question is specifically off topic here then there is no reason to push it around the network and potentially alienate users by forcing them to work out where they end up, logging into a new site and so on.
If the user were to flag their question themselves then it would probably be ...
Fun fact: when I first wanted to ask a programming question on Stack Exchange, I signed up for Programmers, assuming that was the right place. I posted my question (10k+ on programmers only), and then figured out it wasn't the right place. 6 minutes later, I reposted my question on Stack Overflow and deleted it from Programmer's.
Fast forward a year. I ...
Now that you mention it, I was somewhat curious. I ran the following simple query on both Super User and Stack Overflow to see how many users had edit permission (>= 2000 reputation):
Users.Reputation >= 2000
Which returns 488 for Super User, and 18890 for Stack Overflow. As a percentage of total users (i....
Once you associate an email with your Stack Exchange OpenID, you can't change it, this is status-bydesign. Says Kevin Montrose:
If you've lost access to the e-mail you registered with initially, create a new openid.stackexchange account and either add it to your Stack Overflow account (via your profile page, if you're still logged in) or create a new ...
Your question is answered on our big parent Meta site, Meta Stack Overflow:
How can one link/merge/combine/associate two accounts/users? (Anonymous/unregistered/cookie or OpenID/registered)
[…] follow this procedure:
Set the email address of your registered account to the address used
in your other account. Since email is not visible to ...
You have several options:
Use the data dumps
Write SQL queries for Data.SE and download the results
Use the Stack Exchange API.
It really depends on what you want to do with how much of the content.
Note that all content is licensed as Creative Commons BY-SA and you need to adhere to the license when publishing.
The choice, as to which SE site to post your question to, is an important one, as cross-posting is strongly discouraged.
The mechanism that comes closest to your question is migration, but that is likely not what you are looking for.
You could also advertise your post via Facebook, Twitter, or Google+ via the share link below your question.
Adding a ...
Please do not vandalize the content you posted. Meaning, you should not delete all your questions and answers and then have your account deleted.
By posting here you gave Stack Exchange an irrevocable license to use your content. You can have posts anonymized, but you do not have the right for them to be permanently deleted (unless they contain personally ...
It's built on OSQA, which is a well-known clone of Stack Exchange.
Stack Exchange is an original.
Stack Exchange clones
Are there better Stack Exchange alternatives/clones than OSQA?
Is Stack Exchange / Stack Overflow available for private or internal use?
We're doing the same for osx, so, why not?
Tag Wiki Excerpt
When talking only about the excerpt, then I wouldn't recommend doing this. The excerpt has enough space to explain what security is about. The space shouldn't be sacrificed for giving users directions on where else they might ask their question.
You brought up the point that a user ...
The "sign up page" that you show is accessed by clicking, naturally,
on "sign up":
"Sign up" means "create a brand new account".
If you already have a Stack Exchange (OpenID) account,
you don't want to do that; you just want to "log in":
Since some discussion about "on-topicness overlap" around Portuguese StackOverflow (SOpt) and Portuguese Super User (SUpt) arised, I decided to take the 40 example questions from the definition phase of SUpt on area 51 and analyse their on-topicness on SOpt:
Lets start with those 24 questions:
Como criar quotas para contas do samba no Ubuntu? (How to ...
Superuser's one of the 'original' StackExchange sites, AKA the trilogy - we predate the foo.stackexchange.com sites, which I believe started with SE 2.0
So yeah, we're older and as such have a cool domain name.
Ideally stackexchange websites would provide a logout button that worked, of course.
However: if you close all tabs visiting stackexchange websites, and all tabs visiting relevant authentication websites (e.g. myopenid, google websites), and then delete all the relevant persistent browser state, that will do it reliably.
Relevant state consists of cookies, ...
I don't see any ReadItLater related topics on StackApps, our site for applications that interact with Stack Exchange.
As Ivo mentioned, using favourites is easy. Simply navigate to your profile and hit Favourites. Stack Exchange mobile even supports you favouriting, and will load perfectly. I frequent it using an iPod Touch. You can look over on this page ...
Oh well... this seems to be stupid(and it is). It is related with the new questions that keep appearing when the page is not refreshed.
"One question with new activity"
The badge notification, only was loaded when the page was refreshed, and that explains why did it not appear (That minute was spent reading question titles before refreshing).
Use Instapaper instead, it can handle Stack Exchange sites without issue.
There is a Stack App called Stack Printer, which creates a "printable view" of a question and its answers. This might work for you as well.
How can I set it to my network profile without having to type everything manually?
Go to your SO profile (or any profile you want to propagate to SU)
Click "Edit Profile and Settings"
Scroll to the bottom and click "Save and Copy Changes to all Stack Exchange communities"
Sometimes you want to display raw LaTeX code rather than preview it, for example any question about LaTeX might include LaTeX code that should be shown as is. That is the reason why http://tex.stackexchange.com and http://stackoverflow.com lacks MathJax. Note that a question about LaTeX question is hard to programmatically distinguish from a math question ...