On URL links, there is now an option to "open in a new window". It would be good to have this for internal WIKI pages as well. AFAICS there are two kinds of links in my wiki, ones that continue the story and ones that are gobbits of information. For the latter, I want to go to another tab / new window. Also to give a consistent metaphor for the users, if it is set to open in a new windows, it should should have an icon by it to open in a new window.
In fact, all links could have an icon to open in a new window, then the user could easily chose without having to know about right clicking.
Help get this topic noticed by sharing it on Twitter, Facebook, or email.