The absolute best way is to give money. Through various online services such as PayPal, you don’t have to even leave your console. Money allows them to put the donation toward whatever needs arise. That’s why it is called a negotiable security. It can be converted into anything one wants.
You can also remain anonymous if you forego the tax deduction.
If a monetary donation isn’t convenient and you still want to remain home there are plenty of online volunteer opportunities available. My favorite is the United Nations (Online) Volunteers because they operate not only in the US, but are global as well. Here volunteers contribute their skills online to help organizations address development challenges with a view toward sustainable human development.
Or you can take your choice from this list
But always be sure to first evaluate the charities with which you’d like to work with a good tool such as this before you get involved with them. No use wasting your time in a con. That could certainly put a damper on your enthusiasm and the world most definitely doesn’t need another bitter old cynic. So be sure to always thoroughly check out your chosen group to make sure they meet your criteria.
Great Question. Welcome to Fluther, @dina_didi.