1. A computer-implemented method of evaluating information in a computer network environment, comprising: obtaining, by a computing system, initial distribution criteria used to place content, the initial distribution criteria obtained from a content provider; identifying, by the computing system, a first candidate distribution criteria and a second candidate distribution criteria; determining, by the computing system, a first value of a throttling parameter for the content based on a budget for placing the content, wherein the throttling parameter limits placement of the content; expanding, by the computing system, a set of distribution criteria used to place the content to include the initial distribution criteria and expansion distribution criteria including at least one of the first candidate distribution criteria and the second candidate distribution criteria, wherein the set of distribution criteria is expanded based on the first value of the throttling parameter; determining an updated value for the throttling parameter based on a remaining budget following delivery of the content based on the expanded set of distribution criteria; and reducing, by the computing system and based on the updated throttling parameter, the set of distribution criteria used to place the content to exclude at least one of the first candidate distribution criteria or the second candidate distribution criteria from the set of expansion distribution criteria.