Now that you've had a taste of ways to make your Pi project networked, here's how you can learn more about the technique's we've tried:

On Netcat, Network Sockets, and SSH Tunneling

• Netcat: the TCP/IP swiss army
• Wikipedia: Network socket
• What are SSH tunnels and how to use them

On Node.js

• Node.js Embedded Development on the Raspberry Pi
• Using OSC to Communicate with a Raspberry Pi
• Adafruit IO Client Library for Node.js

On Flask

• Installation
• Quickstart - a solid intro to basic concepts and solutions
• Tutorial - a walkthrough on creating a full-featured Flask application
• The Flask Mega-Tutorial