I've been searching a lot for a way to implement single sign-on across multiple wordpress installs..
I have a single install of wordpress for one site and plan to build a new separate site with a different domain..
Having the same community and user base for both site is a huge plus and would benefit the site a lot..
I found that you can have two WordPress installs sharing the same DB and then to have single sign-on you can share the same user tables across both installs by adding two simple lines to wp-config in the second website, like so:
But it would seem this is not working properly after WordPress 3.0 and all posts regarding this solution are not updated..
Is there any way this can be implemented for WordPress 3.0+?
I also looked at implementing the new WordPress Network feature seeing how I would have the same users and have both sites in the same admin page, but then again it depends on sub domains and feels like it was built to add sub-blogs to a main blog, which is not entirely what I want..
Is there any cons. to converting the website to a network? will some plugins not work for instance? and would it infect the performance of the server or the db if it's two full fledged websites that expect high traffic?