http://www.perseus.tufts.edu/hopper/text?doc=Perseus%3Atext%3A1999.01.0133&redirect=tue.

This is the link to the Iliad available in Greek through the Perseus Digital Library. It has the clickable words for most of them, and for a large portion of them it has the dictionary entry for that word.

http://www.perseus.tufts.edu/hopper/text?doc=Perseus:text:1999.01.0135

This is the link to the same website, but for the Greek text of the Odyssey. It has the same functions as the other.