• Dell, the corporate giant, announced this month a new plan to use its cash and technology to fight pediatric cancer. Through January, Dell will commit $4-million in cash and cloud computing technology that will speed up and improve a study on a form of cancer called neuroblastoma. The commitment, which will include additional money and resources in future years, grew out of work that Dell’s business side was doing with the Translational Genomics Research Institute, one of the organizations involved in the neuroblastoma clinical trial.

• The Walton Family Foundation announced this week that it will give $25-million over the next five years to the KIPP Foundation, the national network of charter schools.

• Customers who sign up for online banking with a new Internet bank get a novel perk: cash to donate to the nonprofit group of their choice. According to The Boston Globe, a new online division of Northeast Bancorp called AbleBanking, in Lewiston, Me., will give $25 to new customers, as well as $2.50 a year for every $1,000 they keep in the bank, for donation to a qualified nonprofit.

• Sanford Weill, the philanthropist and former Citigroup chairman, is putting his Central Park West penthouse on the market; according to The Wall Street Journal, he plans to donate money from the sale to charity. Mr. Weill and his wife, Joan, paid $43.7-million for the apartment in 2007, says The Journal.

• Bridgespan, the nonprofit consulting group, will take to Twitter this month to send weekly challenges to encourage donors to be more effective in their giving. The campaign is called #30DaysDonorChallenge.