HN user
Too late for the contest but please check it out. HN Follow: Find discussions that interested you http://hnfollow.ep.io/
Any suggestions or comments is welcome.
Edit: HN Thread http://news.ycombinator.com/item?id=2674880
I think you referred to this slide from PGCon 2010 http://www.pgcon.org/2010/schedule/attachments/141_PostgreSQ...
About a year ago, they were using it to store a list of friends of viewing user who dugg the viewing news.
original blog post: http://about.digg.com/blog/looking-future-cassandra
Treads on HN: http://news.ycombinator.com/item?id=813528
It do interested me tought, especially how they designed their hardware architecture to match their need. Their apps is quite different from other web startup, I think each user got his/her own DB instance. We all heard stories how facebook or twitter which data is stored in one huge DB scale. I'd like to know how 37signals did it and looking forward to their next article.