Search engines are realizing they can earn more revenues by allowing users to manipulate their indexes. Yahoo! BOSS and Google SearchWiki are efforts in that direction.

Essentially these two search platforms provide search refrits of whatever the search engines already have in their indexes, but with some features added for resorting, editing, and making annotations.

We can see some value for using these as aggregation layers for third-party search technologies and for some type of searchers prone to personalization. Such type of searches might be useful for conducting annotated Web Intelligence.

Still these are not platforms designed for searching the Deep Web.