I'm not a very regular poster on Stack Overflow, but (I think) I've been using it before it became Stack Exchange. I'm a developer, so I only use SO to gain input from other more experience developers out there with my development tasks. For this reason, I continue to use my www.stackoverflow.com bookmark, rather than going to www.stackexchange.com.
Now, I recently posted How can we connect to an SFTP server from a Windows machine to a Linux SFTP server using a DSA key? I need to do so programmatically, but I first tried it with a third-party tool and had issues. While it's not a big deal, I was surprised that it got several downvotes for not being a programming question. Apparently, there's another site called Super User where experienced administratos can answer these kinds of questions. I just visited www.stackexhange.com and saw all the other sites.
What do you folks think? Would it be useful to link all the other sites along with their uses from each StackExchange site? I'm sure there are a lot of other people who only go to Stack Overflow and aren't aware of the other sites.