A Day of Mobilizations & Fasting: the Reasons behind the Fast (chabad.org)
The Complete Story of Purim (chabad.org)
The How-To of the Fast of Esther (chabad.org)
On Fasting before Feasting: A D’var Torah
My Jewish Learning: The Fast of Esther
Do’s and Don’ts of the Fast of Esther
Orthodox Union: The Fast of Esther
Sichos in English: The Fast of Esther
Spike & Jamie: The Fast of Esther
Totally Jewish: Fast of Esther
Kol Torah: Taanit Esther