Via Paid Content. Hot on the heels of their acquisition of ABE books, Amazon has purchased the rest of Shelfari. Amazon had invested in the company some two years ago and had hoped it would come to rival librarything in popularity. Interestingly, librarything now also counts Amazon as an investor in it thanks to the investment ABE made in librarything 3-4 years ago. It is likely that librarything owner Tim Spalding will negotiate with Amazon to buy back the share they now own (and I would assume there was a 'change of control' provision in his original deal with ABE). It will be interesting to see who he jumps into bed with next - if anyone.