My solution was to drastically cut back my internet use most of the time I'd have spent online reading books instead. I do what I need to online for work, and I browse HN once a day to keep up with the latest and greatest.
I've found that my attention span returned relatively quickly, and reading books for hours at a time became easy again. The neat thing is that the increased attention span didn't just apply to books. I'm able to get more done at work, too, by staying locked on to whatever I'm doing and not getting distracted.
[1]https://www.amazon.com/Shallows-What-Internet-Doing-Brains/d...
Once it becomes a habit, it's easy to maintain. I'd feel weird if I didn't do it at this point.
I've also noticed that reading in the office attracts strange looks sometimes. I don't know what to do about that. Reading research papers and text books related to what one is working on should be encouraged in a knowledge profession, yet I almost never see colleagues doing it. I guess if your hands aren't on the keyboard those JIRA tickets won't get closed.
I used to read books a lot as a child, but stopped in my teens and have more recently found them more rewarding per unit of time than much of what I find on the internet. I think this started when I realised you can actually buy a copy of The Origin of Species, and so I did. The insights and justifications for evolution presented in that book are much greater than any summary I've ever found online. Things like the imperfection of the fossil record, the importance of one species on the state of an ecosystem, distribution of related species due to geological processes, and so much more. It was a difficult but rewarding book to read, and solidified the importance of reading books for me.
I do however suffer from the same lack of motivation and time to invest as you, so I select my books and allocate time appropriately. Currently I set a goal to read for either half an hour, or one chapter of a book, at least once every couple of days. If the book grabs me I may read more, and I feel I can justify that investment quite often. If it doesn't, I may have to put it aside for another time. I find this habit often draws me toward my next book as I am nearing the end of one, however it needs to be one that feels interesting or important to me. If it's not, then it just won't get read.
[1] https://www.amazon.com/Attention-Merchants-Scramble-Inside-H...
There are means of achieving reading without any reading too. Have you tried audio books? I haven't, my mind drifts too much in audio books, but some friends swear by them.
To me, it's next to impossible to compete with the web.
I vacationed in a wonderful place with no internet access. I read a 600 page book effortlessly and with great joy. It was a remarkable feeling. It has always been hard for me to read long books, even articles. But with broadband in my pocket, it's just too hard
Trying to read convoluted prose front to back without a specific goal, and without having a general idea of what the author is trying to say ahead of time is pretty much a recipe for fail.
On the other hand, I'll happily do a cover to cover on pop-sci book with tight prose that covers experimental findings in plain english.
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As for outside of that I used to read a lot of novels and books on philosophy until I was like 18, now I just read really fucked up Seinen Manga.
But like guys who are writing the compilers,servers, concurrency paradigms, etc. that you use have to read a lot even if it's limited to Tech.
I commute on the train, and spent a bunch of time playing with code / reading info. I now mix it up with reading a book. It's been good, I feel it enhances my intellectual energies rather than drains them.
Why do you want to do something about it?
I intend to do that from time to time as the to-read list is growing :D
The device itself I love. It's so convenient and pleasant to use, I find that I read a lot more books. My only complaint might be that Amazon doesn't care enough about typography.
I hate the device because of DRM. Until fairly recently, stripping the DRM was easy. The new file format (KFX) hasn't been cracked yet and I'm not sure it will be. There are workarounds that involve getting the file in an older format, but then you lose all of the KF8 features.