I just came across Editive – a way to use Mozilla’s support for page editing (OK, and perhaps that of other browsers too) to WYSIWYG edit any random web page in a browser window, and then save it out to disk. This goes further than your average text editing widget – there’s selection indicators, and you can remove or cut and paste images.

It also has the ability to “purify”, or cut down, common web pages to remove ads and banners. Could be useful for accessibility purposes.

Neat trick: Edit this page.