Several MacMinute readers informed us that Amazon.com offers some insight into which colors of the iPod mini are popular among its shoppers. As of 12:00 a.m. ET, the silver iPod mini was the top seller with a sales rank of 305, followed by pink (672), blue (864), green (3,050) and gold (6,342). The iPod mini carries a retail price of US$249, which has been a hot topic since the device’s introduction a week ago.