First of this morning, thanks to arts for pointing out this link to an article on phpdev.com about Caching using Output Buffering. The author gives a good overview and some nice details on the subject.
The NewbieNetwork has a new tutorial up about using aggregate functions and fperators in PostgreSQL. And, in case you're wondering: An aggregate function is a function such as count() or sum() that you can use to calculate totals. PostgreSQL users, this one's for you.
Also, the guys over at PHPBuilder.com have graced us with another article (cough) that talks about PHP and e-commerce using a popular credit card processor called Anacom