David Sifry:

"And we're striving to handle the load. But to be perfectly frank, it isn't easy. We've had some bugs and some outages - and for that I am truly sorry. I don't think the service is fast enough or stable enough. So, stability and fast response time is job #1, over new features and product developments. It has to work, 100% of the time."

I'm pretty sure this isn't the last we hear from Technorati this summer...

Update: speaking of scalability, Wikipedia faces interesting challenges too. Small organizations serving always-increasing demand with a shoestring budget while the underlying content database keeps growing too deserve a lot of respect.