Systems and methods are disclosed for online distribution of content. One method includes: receiving, from a first content publisher, a request to publish, on a web page of a second content publisher in a network of publishers, a link to or preview of content of the first content publisher, wherein the request includes at least one parameter associated with at least one attribute of a desired viewer of the link to or preview of content; receiving, from the second content publisher in the network, a request for a link to or preview of content of a publisher in the network, the request including at least one identifier associated with a prospective viewer of a web page of the second content publisher; and determining whether to display a link to or preview of content of the first content publisher on the web page of the second content publisher.