Are you a philosopher who wants to make the world a better place? Make a public pledge to donate 1% or more of your income to the most effective charities, and see which other philosophers have done the same.
Philosophers Who Have Pledged

"Effective altruism" is a movement that aims at doing the most good with the limited time, energy, and resources we have. Effective altruists believe that

(1) we should donate at least a modest proportion (e.g. one percent) of our income to good causes,

and that

(2) we should direct these donations where they are likely to do the most good.

For example, 
GiveWellone of the best groups conducting charity effectiveness research, has spent thousands of hours finding "evidence-backed, thoroughly vetted, and underfunded" charities.

Research has shown that people become significantly more willing to change their giving habits when they see others giving around them. And since academic philosophers represent an especially tight-knit community, many of whom are especially likely to be interested in ethical issues, publicly pledging your support could be particularly effective in encouraging other philosophers to give.

Read more about effective altruism and why you should pledge here.