Characteristic            TMs          RDNs


Registration
      Required?                     No            Yes
      Warehousing possible?         No            Yes
      Prescreening?                Yes             No
      Generic terms possible?       No            Yes
      Limited to named
         goods or services?          Yes            No*

* Owners of strong arbitrary trademarks may, thus, have little
  success in preventing the use of such marks as, say, generic RDNs. 

Registration Costs
      Per registration?            High            Low
      Frequency?                10 years          Annual?
      Predictable?                  Yes             No


Rights
      Presumptive?                  Yes          Improved
      Monitoring?               Often hard     Usually easy
      Alienable per se?              No             Yes
      Alienable with goodwill?      Yes             Yes

Geographical Limits
      Domestic?                      Yes             No
      Foreign?                       Yes             No

Resolving Conflicts
      Jurisdictional certainty?      Yes             No
      Cancel registrations in rem?   Yes            Yes
      Other remedies?                Yes             No*
      Accommodate strength?        Very well         No*
      Distinguish identical terms    Good            No*
      Costs?                        Higher         Lower*

* Unless trademark suits are brought

Judicial Review  (in U.S.)          PTO               ICANN
     Adjudications             Direct and Collateral   Collateral
     Procedure                         Yes                Maybe
     Substance                       No Power?          No Power?