ChemSpider is an online database containing over 25 million chemical compounds. It provides chemical data and properties that have been harvested from various sources and curated over 4 years. The database can be used for teaching by allowing students to search for chemicals and analyze spectral data. ChemSpider also functions as a platform for the community to contribute their own data, such as new chemical structures and synthesis procedures. It aims to be an integrated educational resource through games and connections to other sites.