You can read the poems, comment on them, find lyrics, read biographies etc etc. But, the great thing about this site is that they offer you a totally free pdf collection of your selected poet's poems - W.B Yeats has over 450, that you can print out at your leisure, at no charge. I understand that the eras will be mixed and it would be preferable to read the poems in the order they were intended, but in terms of raw enjoyment and accessibility, I think this is a great service. Check it out