Code commonly flows downstream, from an open-source project into an organization’s own products. Upstreaming is the process of reversing that flow—contributing code back to an open-source project.

It’s totally possible to learn to code for free...but what are the best resources to achieve that? Here are 11 websites where you can get started.

We trace the rise of free open source software—code that can be freely modified and shared—from philosophical outlier to modern powerhouse ...

Despite many open source projects being included in for-profit software and devices, generally without compensation outside of a simple acknowledgment, the system mostly works reliably.

Open source refers to software or other projects with source code that can be viewed, modified, or upgraded by anyone. Learn about the pros and cons of open source.