For information about dancing, YouTube is definitely the number one resource. You can find everything from explainer, choreography and also fan cams of dances there.
You can also find and learn more about the trendy dances by asking your nearest dance school. No need to pay since they are incentivized to recommend you their most expensive and popular dance classes.
For buying your dance equipment, Amazon is still a good choice with little specialty store selling dance equipment.
Facebook groups provide a network to find fellow dancers near you too.
DanceIvy hope to provide useful information to all dancers and have a great dancing day staying happy and healthy.