I would cut down on the number of stored articles. If you haven't read it in 1 year, is it really that useful?

I prioritize based on my needs and then on my wants. So I will read articles relating to work and stocks first. Then I will read articles or books related to my hobbies.

I let books sit on my shelf indefinitely, although I usually get to any I buy pretty quickly.

I try not to bookmark articles or blogs unless it has some specific/unique knowledge like a recipe that I know I will want to find later and won't be easy to google.