The Landing Page Cookbook - A guide for makers who want to create better landing pages.

Trello - Infinitely flexible. Incredibly easy to use. Great mobile apps. It's free. Trello keeps track of everything, from the big picture to the minute details.

Landing Pages in MailChimp - Easy to build, custom landing pages for free

Nifty - Manage projects, work, and communications in one place.

Carrd - Simple, responsive one-page site creator.

Asana - Asana project management is an effort to re-imagine how we work together, through modern productivity software. Fast and versatile, Asana helps individuals and groups get more done.