It sounded like a good idea at the time….
The following domains are real.
Firstly there is Who Represents?, a database for agencies to the rich and famous: www.whorepresents.com
Second is the Experts Exchange, a knowledge base where programmers can exchange advice and views: www.expertsexchange.com
Looking for a pen? Look no further than Pen Island: www.penisland.net
Need a therapist? Try: www.therapistfinder.com
Finally we have the Mole Station Native Nursery, based in New South Wales: www.molestationnursery.com
(via email from Daniel)