A new kids’ content company, A Squared Entertainment, has teamed with AOL on a slate of entertainment brands for children. The online episodes will feature personalities like Warren Buffett, Gisele Bundchen, Martha Stewart, and the late Carl Sagan and will teach kids about finance, the environment, creativity, and science, Reuters reports. Working in collaboration with AOL, A Squared will produce a season’s worth of three- to five-minute "webisodes" that will premiere on AOL. No financial details were made available. "Secret Millionaire’s Club," featuring Buffett, and "GiGi & the Green Team," featuring Bundchen, are scheduled to debut on AOL this fall; "Little Martha," featuring Stewart, and "Kosmos," inspired by Sagan and created by Cosmos co-author Ann Druyan, will launch in spring 2010. AOL also will work with A Squared to distribute the webisodes more broadly on the web, leveraging the power of social networking…