Google provides web search as well as specialized search.
Google News (including archives)
Google Patents
Google Product Search
Google Scholar (Scholarly papers)
Google Special Searches (including Public Service & Government)
Google Video Search
Memetrics is a provider of testing and optimization solutions for digital marketers. Memetrics technology is available on demand for Web-based campaigns or through licensed software for enterprise-level multi-channel initiatives.
Widemile Inc. is a provider of web testing and optimization technologies and services for online marketers. The company employs a multivariate testing and optimization platform with creative development and campaign management, to accelerate the path to optimal results.
Kefta provides a content optimization solution helps companies build a profile automatically for each site visitor, and then translate that profile in real-time to a targeted and optimized online experience by delivering a specific, instead of generic message.
Interwoven is a content management solutions provider that enables organizations to leverage content to drive business growth by improving the customer experience, increasing collaboration, and streamlining business processes in dynamic environments.
ChoiceStream develops personalization solutions for online consumer services, mobile operators and TV providers.
ChoiceStream's technology helps customers increase loyalty and drive revenue by automatically delivering the most relevant content, products, search results and advertising to each consumer.
Certona Corporation is the creator of Resonance®, a Web 2.0 optimization and personalization platform that automates a company’s ability to provide relevant, individualized content and experience in real-time that calls visitors to an online sales or other marketing-related action.
content optimization, management, multivariate testing
Optimost specializes in real-time testing and conversion rate marketing by utilizing multivariable testing to create and test virtually limitless permutations of copy, offers and layouts in the time it takes to conduct a standard A/B page comparison test.
By combining real-life response data with information about which variables were displayed in the test, Optimost clients are able to determine how much each individual website element contributes to the overall response rate. Client web pages can then be optimized further based on the combinations of most positive individual site elements.
FrontPorch provides ad networks with behavioral tracking capabilities so that advertisers can target campaigns more accurately.