PlanITpoker - PlanITpoker is a cool on-line planning poker app that helps Agile project teams estimate projects easily.
AbeBooks - AbeBooks has millions of new & used books, rare books and out of print books.
Firepoker - Agile Planning Poker powered by Firebase and AngularJS
DealOz.com - Save time. Save money. Discover. Search new and used books, textbooks, and ebooks using the most trusted shopping comparison site, DealOz.com.
Planning Poker - Open source implementation of planning poker game (collaborative online estimation/voting tool).
Occupy the Bookstore - Chrome extension to easily surface cheaper textbooks