2. The method of claim 1 , further comprising generating additional candidates for evaluation by appending one or more operations to one or more of the downloaded candidates.
2. The method of claim 1 , further comprising generating additional candidates for evaluation by appending one or more operations to one or more of the downloaded candidates. 3. The method of claim 2 , further comprising changing an evaluation parameter associated with a candidate media element or a candidate template element based on the corresponding appended operation.