As it gears up for what will be the most sales-intensive season in the short history of e-commerce, Amazon.com has added several new sections. The Seattle e-retailer announced last week it will offer home improvement supplies, software, video games and "gift ideas" on its site. To enable the sale of home improvement goods, the company purchased the tool catalogue company Tool Crib of the North. However, Amazon.com noted that it did not buy the company's five storefronts.