Hey all. It's been awhile since I last posted - sorry about that. Just want to give a status update...
Perhaps you've been noticing some intermittent slowness when using Quizlet. I've been noticing it too - 30 second load times for each page are no fun. Sometimes it's nice and snappy, sometimes it's agonizingly slow. I believe this is an issue with Quizlet's host, and not any "growing pains" within Quizlet. Their site is slow at the same times that Quizlet is slow.
Apart from that, I've been making changes here and there to improve performance and fix bugs. There was a fiasco with smileys a few days ago, but they're back up and usable again. There's nothing epic to say here in this post...Sorry :)
[UPDATE May 29th, 2007] I just twiddled with some settings a bit and improved some mysql settings - these slowness problems should be fixed. You should notice some extra snap in the page loads now. I especially helped out the Quizmarklet, which is AT LEAST 15x faster now. It's now very enjoyable to use. Yay.