think2ool is a browse engine for the wandering mind, connecting one topic to another, at the speed of a click, along the edges of new ideas. think2ool is a dynamic book of content that is created and destroyed on a daily basis to maintain a fixed size of about 80,000 words. It is a work-in-progress that is like a collection of marbles (content) in a full jar: to put a better marble in, a lesser one must come out. An annual snapshot of think2ool is published in paperback form because people still enjoy the ability to annotate, highlight, and doodle on the pages of a book. think2ool asks these questions to filter content: Will this item still be relevant a year from now? Will it make you think about things? Will it challenge you? Does it address permanent and universal human concerns? Is it a big idea, game changer, disruptor, breakthrough? Is it cool and on the edge? Does it reflect the spirit of the times? At the end of the day, is it really important?