I have read about giving as one way to be blessed.
Giving can come in form of anything; it could be giving of your time to a course; talent and gift,  resources and so on.
I am sure of one thing however,  giving of anything can increase your own happiness and good feelings, but is giving a factor to becoming wealthy? I am aware of the Forbes list of the richest, I am yet to hear any of them attributing his wealth to giving away if his resources.