Web of Science indexes approximately 10,000 journals in the areas of science, social science, arts, humanities and proceedings for over 120,000 conferences.
It contains around 40 million records over the period from 1900 - present.
Web of Science offers online training as well as Quick reference guides.
Web of Science offers the option to 'Customize your Experience' (on the right-hand side of the screen). You can register for free to enable you to save searches and create alerts and RSS feeds to assist you to keep up to date with your area of research.