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.

Going Indie - A complete guide to becoming an indie software developer

Todoist - Todoist is a to-do list that helps you get organized, at work and in life.

Hive Index - Discover online communities, across all platforms, for any topic.

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.

IntenseDebate - IntenseDebate's comment system enhances and encourages conversation on your blog or website.