22. The non-transitory computer readable medium of claim 20 , wherein the instructions configured to process the keyword registration request comprise instructions configured to cause a computing device to perform operations comprising: generate at least one keyword from the identifier; and determine whether the at least one keyword is at least one of resolvable or available to be registered for advertising.
23. The non-transitory computer readable medium of claim 22 , the instructions further configured to cause a computing device to perform operations comprising: process a keyword resolution request from the at least one keyword in response to determining the at least one keyword is resolvable; and determine whether the at least one keyword is available for keyword registration in response to determining the at least one keyword is not resolvable.