"Xerography is bringing a reign of terror into the world of publishing, because it means that every reader can become both author and publisher,”"
One of major issues with publishing was distribution. Merely having the tools (back then) to create printed content was not the same as being able to put it in the hands of people that would want to read the content. Without the distribution (or the money to advertise) it didn't matter that you could run off copies or even if you owned your own printing press and bookbinding operation. You still had to get the product in the hands of the public.
It's not hard to distribute your information. Wordpress.com, Youtube, etc. make this extremely easy.
It's hard to get people to care about what you have to say enough that they keep reading it, but making text available to people (well, people with internet access) who want to read it has been entirely solved for more than 10 years.
It's not even hard to distribute if you want to sell it. You can upload it to Amazon and it'll be for sale anywhere on the planet in less than a day (they claim 12 hours or less). Likewise for Barnes & Noble, Apple, and the rest (Apple is the slowest...it can take up to a couple of weeks, but that's still amazingly fast compared to the year or more of lead time for old-school print).
"but it's still hard to distribute your information."
In a sense because of the increased competition (and increased content available) it's even harder.
Otoh, in theory the hard work has shifted and it is possible to get your info distributed in a "diy" fashion. For example you could write a blog, get a following, and sell a book. I'm sure if PG came out with a book there would be a market for it. Back in the day a PG would have to convince a publisher that there was a market for what he wanted to write. So it's really a shifting of the work needed to get distributed.
One of major issues with publishing was distribution. Merely having the tools (back then) to create printed content was not the same as being able to put it in the hands of people that would want to read the content. Without the distribution (or the money to advertise) it didn't matter that you could run off copies or even if you owned your own printing press and bookbinding operation. You still had to get the product in the hands of the public.