Ken Norton explains how he did it:
When I analyzed my reading habits, I realized that despite only finishing five or six books a year, I was already spending a big portion of my evening reading: social media, the news, Silicon Valley think pieces, and my Pocket backlog. Some of it would be worthwhile, but I wasn’t deliberate in how I chose to spend my time (ahem, Wikipedia wormholes). Junk reading, like junk food, is momentarily satisfying but terrible for you in the long term. I didn’t need to read more, I thought, I just needed to read healthier.
He has four other suggestions. I wonder how much of my reading is junk reading? There are certain blogs I look at everyday, but I think I mostly profit from that. I don’t spend time on Twitter or Facebook, but I do spend a lot of time reading newspapers on my Kindle. Norton seems to have the same issue:
I’m still a news junkie when it comes to politics, but I’ve metered the time I spend reading the news (primarily to keep my blood pressure down). I subscribe to important publications like The New York Times and The Washington Post, and I try to pepper short bursts of news over the course of the day. I also don’t load news or articles on my Kindle.
peakmemory 
Very interesting! I don’t know if I can give up junk reading, but I do want to get back to reading books even if they are audio books. I am going to give Goodreads a try!!
Academic books take so much longer read. We have to read the end notes!
Remember when books had little footnotes on each page!!
True, but I less guilty about not reading academic books all the way through!