One Step Checkout for Magento will simplify the checkout process in your Magento store and increase your sales. By reducing the amount of steps to just a single one, and removing unecessary questions and fields, more of your customers will complete the purchase. Supports GeoIP, AJAX-updating of totals and much more.
This is the the Annozilla project, designed to view and create annotations associated with a web page, as defined by the W3C Annotea project. The idea is to store annotations as RDF on a server, using XPointer to identify the region of the document being annotated.