See Cross-Channel.

Cross-channel shopping, also referred to as ‘precision shopping,’ ‘multi-channel shopping,’ or ‘web-influenced offline sales,’ describes the practice of shoppers researching a product or service online, e.g. keyword search, retail websites, etc., and then purchasing the product or service at a bricks and mortar store.

Both eMarketer and Forrester Research highlight the growing importance of utilizing web marketing to reach cross-channel shoppers because of the appeal of cross-channels shopping to buyers; they can obtain a product immediately, see and touch it before they buy, and avoid shipping costs.

Excite is a metasearch engine and among the Internet's most personalized portals featuring a completely customizable start page. Excite features comprehensive search tools, a popular Webmail platform and robust content and resources from over 100 leading providers.

Excite is a property of IAC Search & Media

Dogpile is a metasearch engine whose searches include Google, Yahoo! Search, Live Search, Ask.com, About, MIVA, LookSmart and others.

Clusty queries several top search engines, combines the results, and generates an ordered list based on comparative ranking. This "metasearch" approach helps raise the best results to the top and push search engine spam to the bottom.

Clusty then groups similar results together into clusters. Clusters help you see your search results by topic so you can zero in on exactly what you’re looking for or discover unexpected relationships between items.

Ask.com’s innovative search technologies deliver fast and relevant information for millions of people every day.

Useful Links:

AskCity combines Ask.com’s maps with local content (information, reviews, etc.) from CitySearch with search and map technology.

Key categories are Businesses and Services, Events, Movies, and Maps & Directions.

Blogs & Feeds
Encyclopedia Search

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

Yahoo! provides search services as well as a variety of marketing products.

Local Advertising 
Target prospective customers searching for businesses in your area on Yahoo! Local—and drive them to your web pages or physical location.

Search Submit
 Help expand your reach by ensuring that your business appears in our natural (non-sponsored) search results index.

Product Submit 
Reach millions of motivated potential buyers through the Yahoo! Shopping product search, Gift Finder and Buyer’s Guide pages

Travel Submit 
Help increase your bookings by promoting your offers and deals to eager travelers on Yahoo! Travel.

Email Marketing 
Boost web site traffic and build customer loyalty with Campaigner® easy-to-use email marketing tools.

Technology Solutions
Advertisers, technology providers and agencies: Build a better business with our API Programs.

Business.com is a business search engine and directory and pay-per-click ad network serving more than 40 million unique business users and thousands of advertisers every month.

Business.com helps business decision makers quickly find what they need to manage and grow their businesses, and enables advertisers to reach these users wherever they are across the business Internet through premier partners, including Forbes, BusinessWeek, Hoovers, Financial Times and Internet.com.

Tremor Media provides advertisers with in-banner and in-stream video advertising opportunities on top-tier publisher sites with a combined 92 million unique visitors per month. Tremor provides publishers with a full suite of products and services to monetize streaming video and maximize ROI.