Digital Public Library of America
dp.la
A unified search portal aggregating millions of photographs, manuscripts, books, sounds, and moving images from libraries, archives, and museums across the United States.
Why it is useful
Acts as a single front door to primary sources scattered across thousands of institutions that have never been digitized in one place before. For researchers and educators, it eliminates the tedious process of hunting institution by institution for historical materials. The timeline and map views turn archival research into a genuinely exploratory experience.