The New York Times reports that after years of near boom-like growth of online sales for most retail sectors, the last year has seen a sharp slowdown in major sectors like books, tickets and office supplies. Growth in online sales has also dropped dramatically in diverse categories like health and beauty products, computer peripherals and pet supplies. Analysts say it is a turning point and growth will continue to slow through the decade.

Forrester Research, a market research company, projects that online book sales will rise 11 percent this year, compared with nearly 40 percent last year. Apparel sales, which increased 61 percent last year, are expected to slow to 21 percent. And sales of pet supplies are on pace to rise 30 percent this year after climbing 81 percent last year.