http://clubs.yahoo.com/clubs/GreekSecondaryEducationclub
http://clubs.pathfinder.gr/SecondaryEducationClub
http://www.6gymnasio.gr
http://users.otenet.gr/~teeagpar
http://www.asda.gr/lykper09
http://www.libver.gr/gr
http://homepages.pathfinder.gr/gymnkall
http://users.otenet.gr/~homereio
http://clubs.pathfinder.gr/Biology_dspanos/1654