9 [ Downloadable e-books in the field of business, personal finance, careers, self-help, management, sales, entrepreneurship, computer software, computer hardware, online technologies, mobile technologies, technologies for business, science, health, and medical reference; Downloadable electronic books in the field of business, personal finance, careers, self-help, management, sales, entrepreneurship, computer software, computer hardware, online technologies, mobile technologies, technologies for business, science, health, and medical reference; ] Downloadable electronic newsletters delivered by e-mail in the field of business, personal finance, careers, [ self-help, ] management, sales, entrepreneurship, computer software, computer hardware, online technologies, mobile technologies, technologies for business, science, health, and medical reference; [ Downloadable electronic newsletters in the field of business, personal finance, careers, self-help, management, sales, entrepreneurship, computer software, computer hardware, online technologies, mobile technologies, technologies for business, science, health, and medical reference; ] Downloadable electronic publications in the nature of e-books, PDFs, [ and other electronic documents files ] in the field of business, personal finance, careers, [ self-help, ] management, sales, entrepreneurship, computer software, computer hardware, online technologies, mobile technologies, technologies for business, science, health, and medical reference