Cash lured shoppers to retail sites last week, Nielsen/NetRatings says

The chance to win cash is proving an effective driver of online traffic, researchers Nielsen/NetRatings reports.

Top 500 Guide

Traffic to OldNavy.com soared 56% to 549,000 unique visitors last week, with 35% of shoppers logging on for a chance to win $10,000.

Similarly, traffic to CompUSA.com jumped 43% to 238,000 unique visitors last week, with 19% of the site's audience visiting a special sweepstakes page for the chance to win $10,000.