Blink

Blink

Rendering engine for Chromium (Google Chrome browser) and Chromium OS (Google Chrome OS).
Open source community development.
Tons of resources available for interested browser and operating systems developers.

Python

Python

Used for:

1. full stack development (web dev)
2. scientific and numeric computations
3. programming education
4. desktop GUIs
5. software development

Open source programming language with robust community. Originally created in the early 1990s, Python has been around, developed, and implemented into a plethora of products.