For every $1 donated to globalgiving.org, you will earn 10 HHonors point from now through August 31, 2011. The official promotion can be seen on this globalgiving.org website.
Your $1,000 donation through this program will not only earn you 10,000 HHonors bonus points, but help out various programs of your choosing with Global Giving. Check with your tax consultant on deductions.
For comparison sake, 10,000 points purchased directly through the HHonors program would cost $100.