Syndirella is great little RSS reader that has already become one of my few 'start-up' apps (alongside Phoenix, e-mail client and Trillian). You use it to grab headlines from news or blog-oriented web sites (which is pretty much every site I regularly visit). This site has a RSS feed as well -- you can find the address for it on the About this Site page. It's a great time saver and keeps you informed.
Syndirella is a .NET application. And I find it deliciously ironic that this is the first .NET-based application I've installed on my computer and it just so happens to be GPL software. If you're familiar with Microsoft's stance on the GPL, you'll better appreciate the irony. I only wish that it had been developed using SharpDevelop instead of Visual Studio .NET.