According to a survey by the Association of Learned Professional and Scholarly Publishers of 400 textbook publishers, most are seeing growth in their electronic publishing divisions. The survey also shows that electronic sales now account for 8% of total sales. Because the survey was taken before the announcement of Apple’s iPad, some of the anticipated expansion numbers may already have changed, such as the 17% of publishers who have no plans to expand into electronic textbooks.

ScrollMotion announced today that a long list of publishers had signed deals to bring their textbooks to the iPad and iPod. Some of those publishers include McGraw-Hill, Houghton Mifflin Harcourt, Pearsons, and Kaplan. ScrollMotion is known for its iPhone app Iceberg Reader which provides search, quizzes, and dictionaries.

McGraw-Hill was one of the first publishers to announce interest in publishing textbooks on the iPad. On an earning segment on CNBC the day before the iPad launch CEO Terry McGraw talked about extending textbooks to the iPad platform.