ChangeTracker – Tracking Change In Washington
http://www.propublica.org/feature/changetracker

ChangeTracker, an experimental new tool that watches pages on a) whitehouse.gov, b) recovery.gov and c) financialstability.gov so you don’t have to. When the White House adds or deletes anything— say a blog post, or executive order … ChangeTracker will let you know. The latest changes are on their page or sign up to get alerts sent to you. Each change links to a page that shows the different versions side-by-side. Text highlighted in red means it was removed, green means it was added. This has been addedto the tools section of Research Resources Subject Tracer™ Information Blog. This has been added to Business Intelligence Resources Subject Tracer™ Information Blog. This has been added to New Economy Analytics, Resources and Alerts Subject Tracer™ Information Blog.