PeepCode Meet jQuery quickly became our fastest-selling title of all time. In this screencast, we explore the Ajax features of the popular jQuery JavaScript framework.

We start simply with the transfer of HTML fragments in only one line of code. You’ll learn about the convenience methods in jQuery and then dive down into the details of the low-level Ajax method.

As always, if you have neat projects you want to show off send me a message! I usually try to keep a balance of languages/domains between the posts, so don’t lose hope if your project isn’t in the latest issue. Just please have a README so you can show others (and me!) how to setup/use your project.

Upgrading applications is good sport and all, but everyone knows that greenfielding is where the real fun is. At least, I love greenfielding stuff a lot more than dealing with old ghetto cruft that has 1,900 test failures (and 300 errors), 20,000 line controllers, and code that I’m pretty sure is actually a demon-brand of PHP.

On the heels of U.S. Secretary of State Hillary Rodham Clinton’s Net Freedom speech, Intridea was delighted to receive notification Apple had approved the official iPhone application we developed for Voice of America’s (VOA) Persian News Network (PNN).

The next significant improvement that we hoped to bring to Rails from Merb was faster performance. Because Merb came after Rails, we had the luxury of knowing which parts of Rails were used most often and optimizing performance for those parts.

For Rails 3, we wanted to take the performance optimizations in Merb and bring them over to Rails. In this post, I’ll talk about just a few of the performance optimizations we’ve added to Rails 3: reducing general controller overhead and (greatly) speeding up rendering a collection of partials.