How to collect the information of professional audience

There are generally two ways to collect information for professional audience: one is to collect the information needed by professional audience with the help of various public or non-public information resource carriers. The carriers of public information resources mainly include telephone yellow pages, industrial and commercial yellow pages, internet directory, exhibition periodical directory and so on. Non-public information resource carriers are divided into two categories: one is the resource owner of self-use information, such as the publication list of newspapers and periodicals owned by postal departments and the list of participants owned by conference organizers; One is an operating organization specializing in information services, such as an information consulting company. Second, collect professional audience information through exhibitions. Mainly to register the audience during the exhibition, and then sort out the registered materials to form standardized professional audience information materials. The professional audience information collected at the exhibition site is mainly the audience's business card or the registration form filled out by the audience. The above two methods can be used in combination. The exhibition held for the first time mainly collects the information of professional visitors through the first way. The exhibition held at regular intervals every year mainly collects the information of professional visitors through the second way. The key to the quality of professional audience information lies in whether it can be specific to individuals. In other words, only the information of the company can be obtained, which will greatly reduce the effectiveness of inviting professional visitors.