I had hoped that that the friendster php implementation details would be developed into a case study. But, that didn’t turn out well.
I am looking forward to seeing Marco Tabini’s PHP case study website. There really does seem to be interest and a demand for PHP case studies.
One point from the Flickr presentation:
PHP isnâ€™t so great at being a daemon… Leaks memory like a sieve
UPDATE: Normalized data is for sissies.