Online sales again increased - 29 percent for the week ending May 8, reaching $1.5 billion, compared with the $1.17 billion for the corresponding week a year ago - Internet Retailer reports, citing comScore figures. (Meanwhile, total retail sales for the week ending May 7 were up only 10 percent, according to ShopperTrak's National Retail Sales Estimate.) Online travel sales for the week ending May 8 were up 22 percent, reaching $1.34 billion, compared with the $1.1 billion in the corresponding week a year ago, comScore reports.