PostgreSQL powers the WhitePages Network (Score 2)

I work at WhitePages.com, one of the top 100 US websites, and we use PostgreSQL in our mix of databases. We have the entire US and CA white and yellow page data loaded into PostgreSQL and we see awesome performance from our configuration. We've got over 250,000,000 rows of data and a *lot* of indexes making our database about 375G. We run over 1,500,000 queries per server per day which is about 100 per second at peak. Under load tests, we've seen almost triple that volume from the same servers. However, all of our use of PostgreSQL is entirely read-only in production. So, while you can point to us as a "high-traffic site" using PostgreSQL, you should be aware that our usage is likely very different than your needs.