INSPEC - Inspec is an abstracting and indexing database for physics, electrical engineering, electronics, computer science, mechanical, production and manufacturing information. Produced by the Institution of Engineering and Technology (IET)
SCOPUS - Scientific, technical, social science, and medical literature with links to subscribed full text articles. Allows citation tracking.
Scitation - Portal to search physics and engineering journals.
IEEE Xplore - IEEE magazines and journals in electrical engineering, computer science, and electronics.