I'm studying software engineering and since programming is 90% googleing, I need quite a lot of active tabs.
Bookmarking them, as was suggested before, is not a bad way to deal with this problem. However, after just a week or so you might find yourself diving through a sea of bookmarks to find the one you were looking for - I speak from personal experience :)
If you're using Firefox, I'd recommend a plug-in called "Tree Style Tabs". It's absolutely fantastic and I'm sure you can find it (or some alternative) on the chrome store, too. I still use bookmarks for sites I visit every day.
For news articles you want to save for later specifically, Firefox has a feature called "Pocket". I don't use it, but it looks quite useful.
Hope that helps! :)