After two and a half years of camping out at Freakonomics.com, after more than 1,300 posts and many thousands of reader comments, this blog is moving. From now on, we will reside here at NYTimes.com. If you are a new reader, welcome. If you are an old reader, know that you can still get here via our old URL, www.freakonomics.com. Whoever you are, thanks for stopping by. Starting now, there is also a separate — and revivified — website for our book, replete with excerpts, FAQ’s, reviews, and a gallery of international covers.

We are excited and flattered to be migrating to the Times — especially because I used to work as an editor and writer at the Times Magazine, and also because Freakonomics began as a Magazine profile I wrote about Levitt. For the past two years, we have also been writing a regular column for the Magazine, which is now freely available here. But don’t worry about homer-ism; because we are housed in the Opinion section, we can still poke fun at the Times when warranted, and we can still say nice things about blood rivals like the Wall Street Journal.

If you’ve been paying attention, you know that we recently brought in a site editor, Melissa Lafsky, who’s been doing a great job. She makes sure all ourr typoes get fixxed, and helps curate the sort of content that makes sense for a blog like ours: reader-generated Q&A’s like this one and this one and this one, and Freakonomics Quorum discussions like this one about saving the African rhino.

You will see a number of other new features in the right column of the blog, including (finally!) a proper (sort of) blogroll, a streamlined “FREAK-est Links,” the old “Naked Self-Promotion” box, a new feature called “Stuff We Weren’t Paid to Endorse,” and even a video player, “FREAK-TV.” (Take a look at the inaugural video to see Levitt explain the value of blogging.) And yes, we will still be giving stuff away.

Hopefully you will find most of the changes for the better. If not, I am sure you will let us know: your suggestions and ideas are always welcome, via the contact information in the “About the Authors” box at top right. For those of you who read this blog via RSS, you will find that there is no longer a full feed, but rather a partial feed.

There’s another change you may notice right away: the protocol for commenting. We have written before about the science of commenting, and noted recently that certain posts receive a lot of comments.

The good news is that you no longer have to register with Wordpress to comment, a barrier that many of you disliked.

The bad news is that you have to conduct yourself in a relatively civil manner, according to these Times guidelines, and that all comments will be moderated.

Transgression of these guidelines is punishable by death, or by having your comment discarded, whichever comes first.