I think that the web slowly killed serious reading for me. From roughly 2005 til 2010 I didn’t buy so many books anymore (particularly not fiction), and magazines tended to stack up unread.
The iPad (and later the Paperwhite and text-to-speech on Kindle Fire HD) actually re-kindled serious reading for me. The speed and flexibility of the Net, combined with the comfort of being able to read leaned back (particularly after I got a tablet stand by my bed), were pretty revolutionary. I read more now, and I read “better”.
When I get a paperbook in my hands by mistake, I look all over for the font-size controls and try in vain to do searches.