Several vendors offer computer programs designed to assist businesses in lead generation. Ethics are an important consideration in the choice and implementation of such programs. The use of spyware, Trojans or other intrusive means of gathering information without the knowledge or consent of targeted individuals or entities is frowned upon. Mass unsolicited e-mail advertising (or spam) is also considered unethical by many, and it can result in electronic blacklisting. https://s3.amazonaws.com/giveffect-assets/blog/wp-content/uploads/2018/10/02133844/email-marketing-campaign.jpg
Online surveys: Consumers are asked to complete a survey, including their demographic information and product and lifestyle interests. This information is used as a sales lead for advertisers, who purchase the consumer's information if provided. The consumer may 'opt-in' to receive correspondence from the advertiser and is therefore considered a qualified lead.