Because of the all the big changes listed below, many of the files on Quizlet have changed (71 of them, in fact). If you have any issues with Quizlet's looks or functionality, you probably don't have the right files. To make sure you have the latest copy of all the files, you'll need to empty your b...

Bugs are a fact of life for software programs, and Quizlet is no different. The extended 450-day testing cycle I put Quizlet through before it was launched to the public helped get rid of a vast majority of them, but there will always be those that get through. The feedback feature at the top-right ...

I was browsing the database statistics this evening and noticed that there are now more than 20,000 discussion messages logged in the database. That's very surprising, considering there have only been 4,300 sets created. So I dug a little further and discovered 3 sets with over 3,000 messages each. ...

This afternoon, the file for Learn mode get mysteriously wiped. I've restored it from my code repository and it should function fine now. I'm looking into the cause of this problem, and if you notice any other issues, post them here. I was making some small updates to Quizlet today, and some saving ...

More than anything else, people are missing Menstrual Cycle. It's the most missed term on Quizlet, with 188 incorrect scores logged. That's just funny :) Also near the top of the list, is Jefferson City → Missouri. I guess we can call that the least well-known of the US State Capitals. Sorry, Jeffe...

I've got a sweet little demo video of a new feature I'm working on. Using 5 random terms of a set, the game scatters words and definitions all over the page and has you drag correct pairs onto each other. It's a game similar to Memory, but more fun. To compete with yourself, the game includes a tim...

Quizlet passed 5000 registered users Monday night, all in just 19 days since launch! As I write this post, the current count is 5327 users, and 290 in the last 24 hours. Thank you to everyone who has blogged about it, referred their friends, and added their contributions to the rapidly growing datab...

A lot of people have been asking for some way to hook into Quizlet on other sites to use its data and functionality. This is, of course, a great idea. So I'm in the process of gathering ideas on what an API for Quizlet might do. So far, I think: Embeddable lists: - JavaScript embedded code that di...

Quizlet users - this is a technical post about the wonders of mootools, a programming framework I used to build Quizlet. Feel free to move along. ### Short story: Mootools is awesome because:- Above all, it's intuitive. You can read mootools code and it makes perfect sense. - The code is comp...

Hey. No sweet feature updates today, but I do have this cool graph to make up for it: It shows age (years) and the frequency they occur among Quizlet members. There are a few interesting notes: It's hottest among 15-17-year-olds (the high school crowd). It hasn't gained much popularity among coll...

![The Quizlet logo shines at SFBeta]( I went to SFBeta last night to present Quizlet in front of a bunch of Web 2.0 types. That was a lot of fun. What was not so fun was the fact that I had my AP Bio final the next morning! I survived... During the presentation, we were required to recite a limeri...

On the day of Quizlet's launch (January 17th) I went to this thing called Stirr founder's mixer. Stirr is an organization that puts on networking events for startup founders, and it conveniently had an event on my launch day. Right at the beginning, I was asked if I had a "pitch" - a quick explan...

Just nabbed that screenshot. I'm happy to announce that Quizlet now has more than a thousand users. That's more than 800 new users in the five days since it launched. At the same time, Quizlet surpassed a thousand sets. I've been very impressed with the types of stuff showing up on the site. I've...

Howdy. I just updated the Tags and Groups pages. They list each type of data in aggregate, ordered alphabetically. I may break them into individual pages for each letter, but for now it looks pretty nice. Your thoughts, as always, are appreciated in the comments.

In the excitement of a launch, it's easy to forget to properly introduce oneself. So allow me: My name is Andrew Sutherland and I created Quizlet. I made it because learning vocabulary is hard. And a lot of people have to do it. So my goal is to make learning vocabulary easy for a lot of people. F...

Hey everyone, After 450 days of intense development, it gives me great pleasure to announce that Quizlet is finally open to the public. Anyone may join and use the site now. I don't have much else to say I guess. It's been a great ride so far, and it's just getting started. Digg it! Later! Andre...

I'm back. Camping was cold and excellent. Quizlet's awesome host Textdrive fixed the emailing problem while I was gone. So as far as I can see, Wednesday's launch is on schedule. I couldn't be happier.

Hi. Just a quick note - the server transition went beautifully and everything is on track for the 17th's big launch. One thing that stopped working was email alerts when new sets are created for groups. I'm working with my host on that and should have it resolved by Tuesday. Tuesday, because I'm goi...

The move to the new server seemed to have gone smoothly. If you notice any issues or errors, let me know through the contact page.