Round 1 - Judge Whistway

...because both can be used to cheat at tennis . -- PeterTaylor
...because both have been mistaken for WikiPedia by a band of independent Canadian filmmakers . -- MoonShadow
...because both throw Concrete Cows in the Reality Checkpoint . -- K
...because both can be used as a replacement for a aardvark . -- Requiem
...because both can be used to customise your car . -- MikeJeggo
...because neither are found in Great St. Mary's . -- ChrisHowlett