The Green Goblins' legacy is unmatchable in the marvel universe, IMO. He's tormented SPidey (even after norman was killed) for years. He found out his secret identity , He killed Gwen (Peter was going to marry her), and then he got killed by his glider. The Ggoblin legacy continued with Harry getting inolved with LSD, and things like that. Peter came home one day and actually thought Harry wasn't hom, but he was. Peter was in the shower while harry sneekily opening up the drawer and found the Spidey costume. He whent after SPidey, but in the end, he was taken to a mental insititution. He even told the people taking him in that peter Parker was Spider-Man,, but everybody thought he was crazy. Nobody believed him of course because they thought he was crazy. Harry also claimed he was THE only true Green Goblin. To make a long story short, Harry's psychiatrist bart hamilton became the Green Goblin AND he fought Harry while Harry was wearing the Goblin costume as well. Harry eventually married Liz, had a baby, which lead up to his tragic but epic death in SPectacular Spide-rMan issue 200. Shortly before Harry's death, there's a great scene in the comics where Harry wearing the Goblin costume (except the mask) forces everybody such as Liz, his son, Molten man, and Spide-rMan to have dinner. He has these...sad but creepy outbursts to the point where he's drooling. In the end, he saves Sppidey form an explosion and dies wholding Spider-Man's hand.
And trust me, that's definitely NOT the end of the Goblin saga and I skipped over a lot of things with that write up such as Norman having amnesia after Spider-Man breaks the ropes he was tied up in free and they get into a fight right bfore an explosion happens, etc. Also I skipped over a lot of the stuff in The SPectacular SPider-Man stories inolving Harry as well as Harry fighting the Jason Macendale version of the Hobgoblin, but if you want to know more, just message me.
As for Norman these days, he's so sneeky and unpredictable. it's awesome!