Online retail spending for the week ended April 24 amounted to $1.48 billion - up 23 percent from the $1.2 billion for the corresponding week in 2004 - according to comScore, reports Internet Retailer. Online travel sales for the week were up a whopping 48 percent over the year-ago period, growing to $1.16 billion from $785 million. Total retail sales rose 4.7 percent year over year for the week ended April 30, and 7.5 percnet for the week ended April 16, according to ShopperTrak RCT Corp.’s Retail Sales Estimate.