Ubiqity Firefox Addin from Mozilla Labs

awesome new add-in that allows users to create mashups using commands.

Make screenshots of your website in different browsers

Here's a cool way to test your website in different browsers. I read about a site called browsershots.org on an MSDN blog. It will generate screenshots for different operating systems and browsers. It also has settings for screen size, color, Javascript, Java, and Flash. It took 20 minutes to generate 20 screenshots.

Ajax style animated gifs

Here's a site where you can generate you own animated gifs used as a wait icon. It lets you choose color and style. I read about it on an MSDN blog.