New on the list last year it drops down 43 places this year 

Pluralsight offers expert-led courses, assessments and tools to build technology skills and to keep up to date with the latest programming languages and frameworks

Website: pluralsight.com
Cost: Commercial. Free trial
Availability: Online

Top 100 Tools for Personal & Professional Learning 2019: 83
Top 100 Tools for Workplace Learning 2098: –
Top 100 Tools for Education 2019: –

Past Overall Rankings
2018: 113    2017: –    2016: –     2015: –     2014: –     2013: –
2012: –         2011: –    2010: –     2009: –     2008: –     2007: –