Twelve more billionaires have signed Bill Gates’ “Giving Pledge,” in which they commit to giving away a substantial portion of their wealth via philanthropy. The total is now 81 pledges.

Twelve more billionaires, including the owners of the Atlanta Falconsfootball team and the Anaheim Ducks hockey team, have signed onto Bill Gates‘ “Giving Pledge,” where billionaires plan to give away part of their fortunes to philanthropic efforts.

According to Giving Pledge officials, the 12 billionaires include Arthur M. Blank, owner of the Falcons, and Henry Samueli, owner of the Ducks. Other signees include: Bill and Karen Ackman, Steve Bing, Edgar M. Bronfman, Glenn and Eva Dubin, Red and Charline McCombs, Michael [...]