Forrester expects online retail sales in the US to reach $334 billion in 2015, approximately 10% of all sales in the US. eCommerce will experience a strong compound annual growth rate (CAGR) of 10% over the next five years, translating to $480 billion in online sales by 2019. Physical goods lead the growth in eCommerce as digital goods reach maturity. This year's forecast provides eBusiness and channel strategy professionals with insights into which categories are growing the fastest and how they can capture share in an increasingly competitive online retail environment.