A new report conducted by ShopLocal, the retail arm of the research group PointRoll, indicates that retailers are reaching out to the large numbers of consumers who have begun their holiday shopping early, according to BizReport.com.

The research reveals that October and November are the two most popular advertising months for this year's holiday season. These two months represent the period that consumers will pay the most attention to advertising when heading out on a shopping trip.

"Because fewer advertisers are in market with their ads early in the holiday season, marketers who begin their media efforts earlier stand to increase revenues disproportionately to their competitors during the fourth quarter," Max Mead of PointRoll told the news source.

According to the study, ad interaction rates are at their peak during October and November, and begin to decline during the first week in December. However, the researchers reminded retailers that the majority of customers will still do their shopping in the month of December.

Many consumers are likely to conduct their holiday shopping online. The Federal Trade Commission recommends that holiday shoppers set a budget and be sure to keep good records of their purchases.