Here are some common examples:

* Metals: Metals like copper, silver, gold, and aluminum are excellent conductors due to their loosely bound electrons that can easily move. This is why they are widely used in electrical wiring and components.

* Graphite: A form of carbon, graphite has a layered structure where electrons can move freely between the layers, making it a good conductor. It's used in pencils, batteries, and other applications.

* Electrolytes: These are solutions or molten materials that contain ions, which are charged particles that can carry an electric current. For example, salt water is an electrolyte.

It's important to note that the conductivity of a material can vary depending on factors like temperature, purity, and the presence of impurities.