Send postcards of your favorite flickr images using your Yahoo Mail account and Greasemonkey.
|Twitter Search Box|
Using Greasemonkey, this utility enables you to enhance twitter.com by adding a search box to search tweets and help you find out what's happening right now.
|Yahoo Geolocation Button for Wordpress |
A Firefox Greasemonkey script to embed a "geo this" button within the WordPress admin screen. Click the button and it makes a YQL call to Placemaker, sending along the contents of your post. It embeds the results in the Geo microformat.