Sli

SLI Systems provides advanced search functionality to some of the web’s leading retailers, helping to most accurately anticipate and reflect the search intentions of your users. With analytics and reports into search behaviour and interactions on your site, SLI’s solution can help you optimise your site layout, navigation and merchandising with a view to achieving the optimum result from each shopping experience. With social integration as an added bonus, while their proprietary autocomplete function can help push more of your visitors to the content they’re looking for, and quicker.

http://www.sli-systems.co.uk/