Websites (with links)

Mindful Café
Ten Percent Happier
Greater Good Science Center/The Science of Happiness
Mindfulness Exercises
Action for Happiness
Let it Ripple

Apps

Ten Percent Happier
Mindfulness
Insight Timer
Calm
Headspace
Happify

Podcasts

Ten Percent Happier
The Science of Happiness
On Being

Books

Any book by Thich Nhat Hanh
24/6 by Tiffany Shlain
The Book of Joy by Dalai Lama and Bishop Desmond Tutu
The Book of (More) Delights by Ross Gay
A Year of Living Kindly by Donna Cameron
Forest Bathing by Dr. Qing Li
The Hidden Life of Trees by Peter Wohlleben
Hallelujah Anyway by Anne Lamott

Lists of 10 (with links)

10 Ways to Shrug Off Stress
10 Tips for Setting Up Your Meditation Practice
10 Objects of Focus Besides Your Breath
10 Ways to Spend More Time Outside
10 Ways to be Mindful Throughout Your Day
10 Ideas to Jums Journaling
10 Way to be Mindful With Technology

Your Meditation Toolkit Link