12. The computerized system of claim 11 , wherein the user sentiment is above or below the threshold if a user sentiment score for the post is above or below a threshold score.
11. A computerized system comprising: one or more processors; and one or more computer storage media storing computer-useable instructions that, when used by the one or more processors, cause the one or more processors to: employ sentiment analysis to determine a user sentiment of a post by a user on a competitor's webpage; when the user sentiment is above a sentiment threshold indicating the user sentiment is neutral or positive: retrieve a pre-existing promotional message promoting a product or service of a company, and electronically communicate the pre-existing promotional message for presentation to the user on a user device in response to the post; and when the user sentiment is below a threshold indicating the user sentiment is negative: determine a subject of negative sentiment in the post as a feature of a product or service of a competitor, automatically generate a targeted promotional message that includes information corresponding with the subject of the negative sentiment by retrieving information tagged with metadata corresponding with the feature of the product or service and assembling content of the targeted promotional message from the retrieved information, and electronically communicate the targeted promotional message for presentation to the user on a user device in response to the post.