Last November, I moderated a session at the Thirtieth Annual Charleston Conference called ''Ask an Aggregator." Panelists-Kevin Sayar, president of ebrary; Kari Paulson, president of EBL; Rich Rosy, vice president for library services at Ingram Digital; and Tim Collins, president of EBSCO-representing four e-book aggregators fielded a variety of questions from the audience. There were many similarities between the aggregators, each boasting a strong commitment to providing service, expanding title lists, and offering a variety of business models. One important thing I learned was the difficulty aggregators have in negotiating rights with publishers. Every time an aggregator wants to change a business model, these rights need to be negotiated. This can be a daunting task, to say the least, but demonstrates why change is not instantaneous.