Basically, Tab for a Cause donates around $0.001 everytime you open a new tab.
10 new tabs = 1 cent
100 new tabs = 10 cents
1000 new tabs = 1 dollar.

This all goes to charity.

Click here for more info (and to sign up):
Tab for a Cause

 

Basically, become a philanthropist for free.

 

Just installed this! It's a great idea

 

We already got two skyblockers to join

 

I'll install this when I get home to my laptop.

 

Might install it :3 *spams new tab button*

 

I installed that thing.