Content Query Web Part (CQWP) is probably the best solution for data aggregation within SharePoint 2007 solutions. The limited functionality exposed through the standard UI is compensated by caching and high performance of the CQWP. Yet there is one thing that can keep you off using the CQWP in environments which require you to deploy your solutions including the configuration in a fully structured and repeatable manner.
Recently Robert Nyman, has written a great article about optimizing web site performance using YSlow: an add-on for Firebug for Firefox. In his article Robert presents not only the add-on itself, but he also gives some tips on how to tune various settings to achieve better performance.
Recently, while researching the RSS Feed mechanism of the Content Query Web Part I have stumbled upon the SuppressWebPartChrome Property. As this Property sounds very promising but is not very well documented in the current WSS SDK I have decided to have a further look at it.
The Content Editor Web Part (CEWP) shipped with SharePoint 2007 is just one of these ordinary Web Parts: they don't introduce any extraordinary functionality, yet we all use them in our solutions for some reason. Because this Web Part is all about displaying the Rich Text you have entered, you might think, that it is almost impossible to mess that up. Unfortunately...
Mark Harrison has just posted a little notice about the fact that the United Nations office is using the Accessibility Kit with MOSS. Wondering about the result I took a look at the United Nations site.