Enhanced views archive

A module that provides an enhanced archive block showing months grouped by years and views of posts for each month and years.
What I wanted was a column for each year and a list of the months that had archives listed beneath the appropriate year.

Links from the months would go to a view of the posts for that month, whereas links from the years would go to a list of the posts for that year.

Posts are to be aliased as /content/yyyy/mm/title
so that going to /content would list all content un-filtered
going to /content/yyyy would show the year view
going to /content/yyyy/mm would show the month view