Expedia's Super Bowl advertising may have brought some visitors to its Web site on Monday. According to research group Nielsen//NetRatings, 511,000 people visited Expedia on Super Bowl Sunday and 1.2 million people visited the next day, an increase of 141 percent. Only two other advertisers - Overstock.com and Fidelity Investments - had higher traffic spikes during that period. It's unclear how much of that increase was actually related to Super Bowl advertising, however.

Bellevue-based Expedia's ad featured a woman crossing off days on her office calendar until she went on vacation, and frankly wasn't that memorable. You can see it here.