Most interesting indeed. I have been reading recently of Ægir, it does mention someone else as God of the sea so I'm a bit confused on this matter, although it is very interesting. Also Rán is referred to twice in different sections, one as being a sea Goddess and another of death, I'm assuming she is the Goddess of people who die at sea :3
Also what was up with with Tyr and Thor breaking in and demanding mead XD