1. A method comprising: receiving from a client a request for a feed; determining content of the requested feed and a type of the client; obtaining the content for the requested feed; according to the determined content of the feed and the type of the client, augmenting the requested feed with the executable processing logic; and sending to the client the feed into which the executable processing logic has been added; and wherein the augmenting executable processing logic into the requested feed according to the determined content of the feed and the type of the client comprises: according to the determined content of the feed and a type of each of a plurality of clients that request the feed, augmenting corresponding executable processing logic into the same requested feed, respectively, so as to generate, based on the same feed and for the plurality of clients, a plurality of feeds into which the executable processing logic has been augmented; and wherein the sending to the client the feed into which the executable processing logic has been augmented comprises: sending to respective clients the plurality of feeds into which the executable processing logic has been added.