What are the best cross-platform writing apps?

What are the most useful collaboration tools for remote teams?

What are the most useful collaboration tools for remote teams?

What are the best online document sharing services?

What are the best alternatives to Google Docs?

What are the best free online wiki services that allow you to make your wiki private?

What are the best knowledge base systems for personal use?

What are the best blogs to learn about product design/management?

What is the best team chat software?

What is the best note taking app for Mac?