The post Matt did about better date search inspired me to create OpenSearch plugins which allow you to search for pages indexed in the last 24 hours or the last 7 days. Find them on this page, or just install them from here:
Yoast.com runs on the Genesis Framework
The Genesis Framework empowers you to quickly and easily build incredible websites with WordPress. Whether you're a novice or advanced developer, Genesis provides you with the secure and search-engine-optimized foundation that takes WordPress to places you never thought it could go.