UI Cloud - The largest user interface design database in the world
Krugle - Krugle is the complete enterprise solution for search targeted to the development organization.
Sajari for Shopify - Smart search for your Shopify store
OpenGrok - OpenGrok is a fast and usable source code search and cross reference engine.
Reactive Search - UI components for building Amazon / Yelp like Search
Sourcegraph - Sourcegraph is a free, self-hosted code search and intelligence server that helps developers find, review, understand, and debug code. Use it with any Git code host for teams from 1 to 10,000+.