Check out these two new collections at the UD Library:
ACLS Humanities E-Book Collection
A growing online collection of over 5,000 high quality books. Each year, several hundred already-published titles are converted into digital format to create a core group of books that expand the collection.
More than 450,000 papers spanning biomedicine, communications, sensors, defense & security, manufacturing, electronics, energy, and imaging. SPIE Digital Library is the most extensive research database available on optics and photonics research.