Skitch is this great screengrab/editing tool with great integration with existing services. It makes it really easy to take a screenshot of something, edit it, and get it posted online to your blog, flickr, wordpress.com, whatever. It’s been in private beta for quite a while, and I use it pretty frequently. At this week’s Macworld Expo they made the beta public. If you don’t already have a copy, give it a try, it’s a great little tool. This is a commercial product but they’re not yet charging. Right now only the Mac version is available, though a Windows version is coming as well.