As of right now there doesn't seem to be any official implementation of this feature. I found a feature request on Ubuntu Brainstorm, but it has been open for quite a while. It might still be a good idea to vote on one of the suggestions provided there.

In the meantime you can add a nautilus-script to perform this task. Just copy the script below and paste it in an empty file with a name of your choice in ~/.gnome2/nautilus-scripts/ (e.g. "Open link target").

#!/bin/bash

#Title=open-the-link-target-in-nautilus

#Title[fr]=ouvrir-le-repertoire-cible-dans-nautilus



#==============================================================================

#                     open-the-link-target-in-nautilus

#

#  author  : SLK

#  version : v2011051501

#  license : Distributed under the terms of GNU GPL version 2 or later

#

#==============================================================================

#

#  description :

#    nautilus-script : 

#    opens the target of a symbolic link of the selected object; if 

#    the target of the symbolic link is a file, opens the parent folder

#

#  informations :

#    - a script for use (only) with Nautilus. 

#    - to use, copy to your ${HOME}/.gnome2/nautilus-scripts/ directory.

#

#  WARNINGS :

#    - this script must be executable.

#    - package "zenity" must be installed

#

#==============================================================================



#==============================================================================

#                                                                     CONSTANTS



# 0 or 1  - 1: doesn't open but displays a message

DRY_RUN=0



#------>                                       some labels used for zenity [en]

z_title='open the link target in nautilus'

z_err_bin_not_found='not found

EXIT'

z_no_object='no object selected

EXIT'

z_info_target='path of the target'

z_choice_open_nautilus='open target in nautilus'

z_choice_open_file='open file with default application'

z_choice_display_filepath='open a messagebox to copy filepath'



#------>                                       some labels used for zenity [fr]

#z_title='ouvrir le repertoire cible dans nautilus'

#z_err_bin_not_found='introuvable

EXIT'

#z_no_object='aucun objet selectionne

EXIT'

#z_info_target='chemin de la cible'

#z_choice_open_nautilus='ouvrir la cible dans nautilus'

#z_choice_open_file='ouvrir le fichier avec le programme par defaut'

#z_choice_display_filepath='ouvrir une boite de dialogue affichant le chemin du fichier'





#==============================================================================

#                                                                INIT VARIABLES



# may depends of your system

DIRNAME='/usr/bin/dirname'

GREP='/bin/grep'

NAUTILUS='/usr/bin/nautilus'

PERL='/usr/bin/perl'

READLINK='/bin/readlink'

XDG_OPEN='/usr/bin/xdg-open'

ZENITY='/usr/bin/zenity'



#==============================================================================

#                                                                     FUNCTIONS



function check_bin

{

    err=0

    for bin in $* ; do

        if [ ! -x "$bin" ] ; then

            $ZENITY --error --title "$z_title" 

              --text="$bin $z_err_bin_not_found"

            err=1

        fi

    done

    [ $err -eq 1 ] && exit 1

}



#==============================================================================

#                                                                          MAIN



# lets check for required binaries :

[ -x "$ZENITY" ] || {

    echo "[ERROR] $ZENITY not found : EXIT"

    exit 1

}

check_bin "$DIRNAME" "$GREP" "$NAUTILUS" "$PERL" "$READLINK"



# lets check if object is selected :

[ "$NAUTILUS_SCRIPT_SELECTED_FILE_PATHS" == "" ] && {

    $ZENITY --error --title "$z_title" 

      --text="$z_no_object"

    exit 1

}



# retrieve the first object selected :

first_object=`echo "$NAUTILUS_SCRIPT_SELECTED_FILE_PATHS" 

  | $PERL -ne 'print;exit'`



# lets check if local path :

[ `echo "$first_object" | $GREP -c "^/"` -eq 0 ] && {

    $ZENITY --error --title "$z_title" 

    --text="[ERROR] $first_object has not a valid path

EXIT"

    exit 1

}





# retrieve the target path :

if [ -L "$first_object" ] ; then

    # symbolic link

    target=`$READLINK -f "$first_object"`

else

    # not a symbolic link :

    target="$first_object"

fi



if [ -d "$target" ] ; then

    # target is a directory

    target_to_open_in_nautilus="$target"



else

    # target is a file, let's take the parent directory

    target_to_open_in_nautilus=`$DIRNAME "$target"`



fi





### DRY RUN : noop



[ $DRY_RUN -eq 1 ] && {

    $ZENITY --info --title "$z_title" 

      --text="<b>DRY RUN</b>

first_object: $first_object

target: $target

target_to_open_in_nautilus: $target_to_open_in_nautilus"

    exit 0

}





### GO : let's open



choice=`$ZENITY --list --title="$z_title" --width="500" --height="200" 

  --text="<b>$z_info_target</b>

$target" 

  --radiolist --column "" --column "action" 

  TRUE "$z_choice_open_nautilus" 

  FALSE "$z_choice_open_file" 

  FALSE "$z_choice_display_filepath"`



case $choice in

    "$z_choice_open_nautilus")

        $NAUTILUS --no-desktop "$target_to_open_in_nautilus"

    ;;

    "$z_choice_open_file")

        $XDG_OPEN "$target"

    ;;

    "$z_choice_display_filepath")

        $ZENITY --entry --title="$z_title" --width="500" 

          --text="$z_info_target" 

          --entry-text="$target" &

    ;;

    *)

        exit 1

    ;;

esac





exit 0





### EOF

Then make the script executable by right clicking on your file and and going to Properties --> Permissions and checking Allow executing file as program.

The script should now appear as a new menu entry in the nautilus context menu. Just right-click on a link and choose Scripts --> whatever-you-named-your-script.

Script source: http://gnome-look.org/content/show.php?content=134979