So, we've finally got an official word on this, the one sentence summary by Matt reads:
PHP in WordPress themes must be GPL, artwork and CSS may be but are not required.

Ok, so that's the final truth, because the Software Freedom Law Center (who are of course absolutely NOT partial in this, even though they're called

I've just released Sociable 3.3 which comes with a very cool new feature: awe.sm integration. Awe.sm is a URL shortener. Free for those with an account (it's in private beta right now), and then it uses awe.sm, but for $100 you get a URL shortener on your OWN domain!
Now I happened to have a

While in a previous post I talked about WordPress database optimization, with this post I intend to show you how to improve your sites performance a bit more by hosting your javascripts with Google.
This only works if you're using jQuery, prototype or another library that is supported by Google's AJAX Librararies API.
While those javascript libraries

WordPress, with version 2.3, introduced the concept of Tags. As described by Wikipedia, a tag is "a non-hierarchical keyword or term assigned to a piece of information". This meant WordPress had a hierarchical way of classifying information (categories), and a non hierarchical way of classifying information. As far back as in 2006, people were discussing

At OrangeValley, we're currently working on migrating a large Dutch blog network over from it's own proprietary system to a WordPress Multi User install, one of our more serious WordPress MU development projects. There's quite a few things about WordPress MU that I like, but what I like most is, well, that's it's WordPress :)
For

I presented on A4UExpo Europe yesterday on WordPress Optimisation, doing 40 tips in 40 minutes. Here are the slides:

I was a guest on WPWeekly Episode 48 last saturday, where we discussed a lot of things WordPress, WordPress SEO, etc. It was fun being on with Jeff Chandler and David Peralty, and I think you'll enjoy the interview, so go listen to it, like, now!

I've been working with a plugin that was mentioned on the wp-hackers list last week, called debug queries, to optimize the performance on some of my sites, including this one. The plugin was pretty easy to use, and I've improved a bit on it. I've sent the patch to Frank, who authored the original plugin,

Finally, we're pleased to announce the winner of our SunPress competition. We had a bounty of entries and after much debating we asked two of the entrants to go back and make their plug-ins a finished article.
Our final winner is David Fiske, who developed SunPress Exchange - a very clever plug-in to take sunshine's RSS

I was recently interviewed by Ross Dunn, one of the hosts of SEO 101 on Webmasterradio.fm. I thought it might be interesting for you too, so you can listen here or download the mp3 here.
We discuss WordPress optimization at a pretty basic level, so for those just starting out with WordPress optimization this might be