Back on the list in 2019

Zotero is a free, easy-to-use Firefox extension to help you collect, manage, and cite your research sources.

Website: zotero.org
Cost: Free.
Availability: Download

Top 100 Tools for Personal & Professional Learning 2019: –
Top 100 Tools for Workplace Learning 2019: –
Top 100 Tools for Higher Education 2019: 92

Past Overall Rankings
2018: –    2017: –        2016: –    2015: –    2014: –      2013: –
2012: –    2011: 82     2010: –    2009: –    2008: 66    2007: 72

Comments from some of those who selected Zotero as one of their Top 10 Tools

“free reference database” Sergey Litvinov, 2014

“is free, easy-to-use Firefox extension to help collect, manage, and cite research sources. I’m finding it very useful.”  Joan Vinall-Cox

“A Firefox browser add-on that “helps you collect, manage, and cite your research sources.” Great for conducting research.”  Matt Lisle

“I especially find Zotero is an unparalleled research and bibliography tool”  Terry Elliott