To link a directory into your current directory:
ln -s $HOME/accounts/may
This links the directory $HOME/accounts/may into your current working directory. This link will have the same name may as the directory it points to.
To link several directories into a subdirectory:
ln -s $HOME/hyperhelp $HOME/metacard experimental
This links the directories $HOME/hyperhelp and $HOME/metacard into the subdirectory experimental.