In-depth, peer-reviewed summaries on a range of topics.
Database of encyclopedia entries covering a wide variety of topics. Includes an audio feature that will read each entry out loud.
Written by authors with science backgrounds, intended to build foundational knowledge at the early stages of high school/undergraduate college.
Electronic books in computer science, information technology, business, and related fields. Note: Here are Instructions for accessing O'Reilly eBooks
More comprehensive than encyclopedias and may include specific angles from the field.