Google CSE Examples: Tech Stuff
Vik Singh created a custom search engine, called Tech Stuff, by uploading a list of popular domains and OPML files from Robert Scoble and Matt Cutts.
Google CSE Examples: Grapejooz
Google engineer Sashi Seth used Google CSE to improve the search on his wine blog.
Google CSE Examples: Google Blogoscoped
Phil Lenssen at Google Blogoscoped cobbled together several well known search blogs to make a custom search engine.
Google CSE Examples: Web Tech Blog Search
Web Tech Blog Search is another example of a hosted Google CSE. This SE searchs several popular tech blogs, including Techcrunch, Mashable, and Micropersuasion.
Google CSE Examples: Ultimate Jobs
Ultimate Jobs collates results from Crunchboard, Craigslist, Careerbuilder, HotJobs and Monster. Ultimate Jobs takes advanatge of the Google hosting option, and the site remains on Google's servers.
Google CSE Examples: Putch Search
Putch Search attempts to remove spam results from searches, while placing advertisements (which some regard as a form of keyword spam) on the right hand side of the page.
Google CSE Examples: Intuit
Another partner that Google displayed was Intuit. Users of their Jump Up site use Google CSE when they select "Top Business Resources" underneath the main search box.
Google CSE Examples: Realclimate.org
Google used Realclimate.org as an example of Google CSE in action when they launched the product.