IMHO , books are important. No matter what the information that you have and your opponent doesnt have gives you an edge.
Ive read a few books myself and it helped... im sure that if you are a poker player and you never read a book , you could benefit from it... only exception is if you are a pro, but im pretty sure most pro already read tons of books ( and wrote their own books ) .
Alternatively, you could get information on the internet from various sources...
I have a website myself, its just a small blog for fun, and i post a few articles / tips / strategies now and then. ( if you want to take a look at it, the link is in my profile

, leave your comments if you do ! )
You could also download some ebooks...
But in the end, you dont learn to drive by reading books... you have to practice !