| http://www.egiklopedia.gr |
| http://www.nlg.gr |
| http://dlib.ionio.gr/dllinks.htm |
| http://www.gnosinet.gr/ez/index.html |
| http://www.care.gr/enc/ |
| http://el.wikipedia.org/ |
| http://www.live-pedia.gr/ |
| http://oulib1.open.ac.uk/openlibrary/index.htm |
| http://www.britannica.com/ |
| http://encarta.msn.com/ |
| http://www.wikipedia.org/ |
| http://www.wikibooks.org/ |
| http://www.els.net/ |
| http://www.healthinternetwork.net/ |
| http://www.nla.gov.au/padi/ |