For the week ending July 10, online sales increased 23 percent compared with the corresponding week a year ago, reaching $1 billion from $815 million, Internet Retailer reports, citing comScore figures. Online travel sales were up 4 percent, to $1.05 billion, from the $1.1 billion in the corresponding week of 2004. According to ShopperTrak, total retail sales for the week ending July 9 were up 4.1 percent from the same week a year ago.