Fasticon is a website that offers software developers and designers a whole plethora of cool Web 2.0 icons. They offer a range of computer related icon packages each containing 165 icons costing $249 to $349.
But the good news is they also offer a range of icons as freeware, which means you can download and use them on your website or blog for free. We are using an RSS feed icon on this site (see the orange circle at the top of the page?).
As well as covering the usual icon suspects (del.icio.us, stumbleupon, rss etc) there are also a few quirky packages thrown in. Take a look at these great examples.
