1. Internet: The internet is a vital connecting link that connects people and organizations worldwide. It allows for easy communication, sharing of information, and collaboration.

2. Transportation: Transportation systems, such as roads, bridges, railways, and airports, are crucial connecting links that allow people and goods to move from one place to another.

3. Telecommunications: Telecommunications systems, such as telephone, mobile phones, and satellite communication, enable people to communicate with each other across long distances.

4. Energy: Energy systems, such as electricity grids and oil pipelines, are essential connecting links that supply power to homes, businesses, and industries.

5. Water: Water systems, such as dams, reservoirs, and pipelines, are critical connecting links that supply clean water to cities and towns.

6. Social networks: Social networks, such as Facebook, Twitter, and LinkedIn, are important connecting links that enable people to connect with each other and share information.

7. Supply chains: Supply chains are connecting links that connect manufacturers, suppliers, and retailers to deliver products and services to customers.

8. Financial systems: Financial systems, such as banks, stock markets, and payment systems, are crucial connecting links that enable financial transactions and investments.

9. Education: Education systems are connecting links that provide knowledge and skills to individuals, enabling them to participate in the economy and society.

10. Healthcare: Healthcare systems are connecting links that provide medical services and care to individuals, improving their health and well-being.