Online retail sales aren't growing at the torrid pace they once were, but they continue to grow steadily. Forrester Research put out a new five-year forecast today predicting that e-commerce sales in the U.S. will keep growing at a 10 percent compound annual growth rate through 2014. It forecasts online retail sales in the U.S. will be nearly $250 billion, up from $155 billion in 2009. Last year, online retail sales were up 11 percent, compared to 2.5 percent for all retail sales. Some other stats from the U.S. forecast: