Most web administrators who haven't installed a site search say it's because they don't have time or the applications are too complex. Those who have cite improved navigation as their number one reason, by far. See more information . Search, the service is jointly produced by search engine Northern Light and the U.S. Commerce Department's National Technical Information Service through a five-year agreement. The service is unusual for the web in that searching is not free.
Special pricing is also available to companies and organizations that require multiple accounts.
Northern Light has now indexed about 4 million web pages located on more than 20,000 US government servers, which also include military and some educational sites. Google has its own US government search service. Test queries show it to be much smaller than Northern Light's index, yielding only 10 to 50 percent of Northern Light's counts. But the relevancy of some of the matches was impressive. Definitely worth a visit.