Bilingual Site

[M4rtin]

My site runs the News v1.1.1 child theme. Originally, most of the content was in Spanish, but as I began to feature articles in English I simply created a new category and placed a prominent image on the front page to direct Anglophone visitors to the content in English. I am now publishing content in both languages at the same rate, so the site has essentially become bilingual. I think that I now need to come up with a new solution to make the site reflect this and make it easier for my English-speaking visitors to find the appropriate content.

Ideally, I'd like the site to include a tab whereby users may choose the "English Edition" or the "Spanish Edition". So, if an English-speaker selects the "English Edition" the site would refresh and display the contents in that language. I think that this would probably require my creating an entirely new install of Wordpress and the child theme (say, at mydomain.englishedition.com), but I am really not sure.

Anyway, I'd appreciate your input as to the best solution to accomplish this. I understand that Wordpress offers the possibility of managing multiple installs. Does that mean, by the way, that when author "x" wants to publish a story he can choose on which site it shall be published (or even on both at the same time)?

Here is my site.

Thanks in advance for your input!

Martin

PS If any of you experienced-eagle-eyed WP experts catch anything that could be improved, I'd also appreciate your suggestions :)