Advances in computing and communications technology have significantly impacted the direct mailing industry in recent years. As computers become more powerful and databases become larger, new opportunities arise for direct mail companies to perform more in-depth processing of their mailing lists. Mailings can be targeted based on location and demographic data. This allows mailings to be targeted more specifically and potentially increases response rates. Web sites are appearing which allow clients to create their mailing lists interactively using map-based interfaces.