This website is host for quite a few valuable resources including a podcast, video library, articles and much more. This has been my "go to" resource for anything "growth mindset".
Although this website primarily sells their own programs for parents and educators, they do have some research, tips, etc... available at no cost.
This site is a wealth of information on EI including podcasts, videos, research, articles, programs and much more. The resources here are addressed mainly to leaders in the professional world
The Emotional Intelligence Network
This is another resource packed with options. Six seconds provides educational programs, assessments, event information, research, blog posts, videos, newsletters, eBooks and more all focused on how to improve emotional intelligence.
This resource produced by Six Seconds Social Emotional Learning Activities for Kids They are great activities to do together with your children in order to foster emotional intelligence at a young age.