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Carol Vallone, who was CEO of WebCT before it was acquired by Blackboard, has become acting CEO of Wimba, a company that focuses on software that promotes group learning in higher education (and elementary and secondary education). Vallone, who has been on the Wimba board, said that no decision had been made on whether she might become CEO permanently. While Vallone declined to discuss specific goals for the company, she said she believed its services could be particularly helpful as colleges attract a more diverse range of students. And while Wimba has significant sales outside of the United States, in Australia and Britain, she said she believed there was "a lot of room around the globe" for international growth.