Of possible interest to poetry enthusiasts: Christopher Kern, a visiting professor at Auburn University, is in the process of translating the Gosenshū (Gosen Wakashu), collected about 951 CE, which was the 2nd of the great Imperial Anthologies. He has put up a Wiki with what he has so far, including sources used and analysis of the poems. Check it out here: http://jchristopherkern.com/Wiki/Gosen_wakashu
There is a short wikipedia entry about the Gosenshū here: https://en.wikipedia.org/wiki/Gosen_Wakash%C5%AB
And a brief entry concerning the 21 Imperial Anthologies here: https://en.wikipedia.org/wiki/Chokusen_wakash%C5%AB#Nij%C5%ABichidaish%C5%AB