Operating on-line marketplaces featuring books, journals, e-books, electronic journals, worksheets, workbooks, printable journals, magazines, electronic magazines; Retail store services featuring a wide variety of consumer goods of others; Retail store services featuring books, journals, e-books, electronic journals, worksheets, workbooks, printable journals, magazines, electronic magazines; On-line retail store services featuring a wide variety of consumer goods of others; On-line retail sto...