pr domains what content to place on it

i bought pr 5 domains last
pr is good and links also but i'm not sure what content to
place on it in order to keep pr

anybody any suggestions??

thanks
wouter

 

Does the domain have any keywords? If its general, maybe a directory?

 

one is an old hosting and i'm not really thinking of reselling domains
the other i don't something russian or chinese but i can't make much of
Normally i check the wayback machine and duplicate the old content but in this case....