The value of free content

I'm reading To Sail A Darkling Sea by John Ringo right now.

So far, awesome book.

And a testament to the profitability of free content.

I've read most of John Ringo's books from the library. But when I went to Jamaica, I bought Under a Graveyard Sky because I liked what I got from the library and the new book sounded awesome.

I've gotten To Sail A Darkling Sea from the library, so some might argue the point. But it was on my birthday wishlist. And if John Ringo comes to town, I'm buying hardcopy to get signed. So I will have bought three copies of two books.

Not bad for hooking me with the first taste for free.