From The New York Times:

In an effort to encourage collaboration between charter schools and traditional neighborhood schools, the Bill and Melinda Gates Foundation has awarded $25 million in grants to seven cities. The Gates Foundation, which is one of the largest philanthropic players in public education, was scheduled to announce the grants to Boston, Denver, Hartford, New Orleans, New York, Philadelphia and Spring Branch, Texas. Relationships between traditional public schools and charters, which are publicly financed but privately operated, are often fraught, with neighborhood schools seeing charters as rivals for money and the most motivated students.