Actually when we talk about serendipity with regards to books online, it's pretty silly to disconnect that from serendipity on the internet itself - because if you're a book lover ,ideas from the internet will guide you towards books.
And while there's a debate whether internet increases serendipity or just puts us in a filter bubble(personally i think that if you want more seredipity , you'll get it), there's some research that supports "more serendity" claims:
And while there's a debate whether internet increases serendipity or just puts us in a filter bubble(personally i think that if you want more seredipity , you'll get it), there's some research that supports "more serendity" claims:
http://www.cs.cmu.edu/~pandre/pubs/note0669-andre.pdf