GoogleLabs site that shows how much of a web page can be seen at various resolutions from 600x300 upwards. It also shows what percentage of users use these resolutions - and can therefore use your site without scrolling. Useful for deciding placement of key elements such as navigation bars and "Donate" buttons.
Overstock.com SEO tactics get noticed by google.
"Less than two weeks after a New York Times article revealed JC Penney using black-hat SEO tactics to improve organic search engine rankings, Google has now penalized Overstock.com. The retailer offered product discounts to university students and faculty in exchange for posting links to Overstock.com on the university websites."