Abstract :
We live in a world where cutting-edge technical research can be done at home. Now, with nothing but a computer with an Internet connection, any user can participate in over 50 ´citizen-science´ projects around the world. They are for amateur astronomers, ordinary people, groups of volunteers, or even anonymous users. Today, anyone can donate spare processing capabilities to contribute to large-scale computing projects to perform computational tasks, known as volunteer computing. This type of project requires only computers´ spare resources to process data sent from a server. Users can also donate their own spare time to other projects that require active data analysis.