Answer: Publicity
Explanation: Publicity is the the form of promotion or spreading information about any product, thing,person etc in public. Audience is the target while promotion is done for anything. The medium of publicity is media, newspaper, internet etc .
The effect of publicity can result in both negative and positive manner .If awareness , safety steps, informative content is being promoted through publicity then, it is stated as positive effect else negative impact can be demeaning any product or person, conveying subjects that raise conflicts etc.
Publicity service can be paid as well as unpaid.the unpaid publicity is usually known as free publicity .