Summary: Some resources for developers for Internet Explorer 7 toolbar which uses OpenSearch'

Internet Explorer 7 Search toolbar

Internet Explorer, IE7, implements its search toolbar using an open approach that allows developers and end users to add Search providers to the toolbar.

The underlying technology is based on A9's OpenSearch

An overview of the technology is explain at IEBlog

Behind the scenes of how it came about IEBlog

End users can add search providers at OpenSearch: add search to IE7

An explaination of how to add Microsoft's Live's macro capability to IE7 Searchbartoolbarand.html

Here's how you can create a specialized search that uses Google to only look a few sites
Customizing Search for multiple sites!BF6ACFFBD849AAB7!123.entry

How to create a specialized search that uses MSN to only search a few sites
Customizing Search for multiple sites!BF6ACFFBD849AAB7!122.entry