Academia.edu
AcademicLabs
Addgene
AllTrials
AllTrials
Preregistration of clinical trials
Altmetric LLP
Research Square
Chinese National High-tech R&D Program and the National Science Foundation of China
AMiner
A free online service for academic social network analysis and mining.
Annotag Calculator
Annotag Calculator
Literary annotation protocol
Annotate.co
Annotate.co
Annotate and collaborate on documents and images.
ABO Annotated Books Online
Annotated Books Online
A digital archive of early modern annotated books.
HyperStudio
Annotation Studio
An open-source, a suite of collaborative web-based annotation platform.
Leica Biosystems
Aperio ImageScope
View and annotate digital pathology images.
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breakthroughs in tools that help researchers keep ideating and innovating.