Chemspider
A web-based database of small molecules, with associated data and links.
Cite This For Me
Cite This For Me is one of the most popular citation tools today.
CitEc
Provides citation analysis for economics papers distributed in the RePEc digital library.
CiteSeer(X)
Public search engine and digital library for scientific and academic papers.
Claira
Lab equipment management system
Clustermarket
Access thousands of scientific instruments on demand
Colaboratory
A data analysis tool that combines text, code, and code outputs into a single doc
Confluence
Confluence is a collaboration software program.
Consano
A crowdfunding platform for individuals to donate to medical research projects.
CORE
Aggregator of open access research papers for researchers and repositories.
Crossmark
Quick and easy access to the current status of an item of content.
CrossRef
Search metadata records for journal articles, field-specific, for software.