Kindle lacks a tool for rediscovery and exploration. In one neat package, Readwise provides both, reminding us of passages we liked and facilitating discovery of new books and new authors.
Readwise sends me the one email I look forward to opening every single day. A daily collection of the best ideas from your favorite books. It's a dream for readers who highlight and take notes.
I was super happy to discover Readwise... The web is so much about immediacy and rewarding the now, that I love the idea of going back and exploring my "cache-memory".