I was inspired by Andy Matuschak's Evergreen Notes viewer and created this small web app to browse Wikipedia in the same way. Clicking on a link opens the content in a new pane to the right. And you can resize panes. It's really nice for following rabbit holes or checking out lists from articles. Let me know what you think!
Code here: https://github.com/steezeburger/wikipedia-browser
E.g. instead of opening 4 google search links as tabs, you could just open one "to the side" and quickly go to the next link if it turns out to be SEO spam (and avoid a click to close-tab or back-buton).