I was looking for movies to rent on Netflix tonight and I noticed something I'd never seen before. At the bottom of the new releases page there's a section for "Most Popular DVDs from One Year Ago." I think that's a really interesting choice. It's a great way to discover a movie that you might have wanted to see but had forgotten about. Similarly, one of my new favorite blogs Unclutterer does one post per week that collects their posts from one year before.
Even though both of those examples use one year as a timeframe, I think site owners should should choose an interval that makes the most sense for their content. For example, a political site might review stories from four years previous. But whatever the timeframe, it's a great way to help users discover content they might have missed the first time.
