### aggregation | package | computer programme:

Search engine
* Many search engines are databases that are compiled by a computer program
  - support both keyword and directory searching
  - use keywords to list Web sites for Internet users
* Many search engines use meta tags for page descriptions and keywords
  - to rank pages
  - some form of Boolean logic
* Many search engines use spiders to catalog information on the Internet
  - gather web pages for indexing in their database
  - string queries when indexing sites
* Most search engines allow people to search the entire web.
* Most search engines are databases of Web pages
  - for-profit entities which operate on advertising
  - indexes created by robots
  - do their text query and retrieval using keywords
  - employ the principles of Boolean logic in the formulation of search queries
  - have robots or spiders which go out and find Internet resources
* Most search engines rely on keywords, and only scan web pages
  - meta tags for indexing, ranking, and providing access to Web sites
* Most search engines use automated Web browsing programs called spiders, bots or robots
  - tools and programs to gather resources
  - computer programs called spiders or crawlers to index their web pages
  - link popularity as a factor in determining the ranking of a web site
* Most search engines use meta tags to index sites
  - tags, and keywords to index web pages
  - robotic software to create the abstract and to index registered sites
  - software to generate a list of links
  - spiders to index web sites and store information into their databases
  - text analysis tools to determine if a website matches a query
  - work using a database of web sites
* Some search engines allow a search of pages on the world wide web that link to a particular page
  - advertisers or fee payers to have their pages displayed preferentially
  - other ways of grouping words together
  - count file names as keywords when ranking each page
  - employ robots to do their bidding
  - implement spam-detection software that works by looking for long string matches
  - organize web pages by subject categories and subcategories
* Some search engines rely mainly on keyword frequency in text to rank their pages
  - on keywords to find pages
* Some search engines specialize in a subject area or type of file
  - finding certain kinds of information such as people or graphics
* Some search engines use link popularity as a way to position web sites in their indexes
  - in their ranking algorithms
  - meta-tag content when they display the results of a search query
  - software programs known as crawlers, robots or spiders
  - title information to index Web pages.
  * are some of the most advanced websites on the web. They use special computer code to sort the web pages on SERPs. The most popular or highest quality web pages will be near the top or the list.
  * are very useful to find information about anything quickly and easily. Using more keywords or different keywords improves the results of searches
* act as portals to the world wide web
  - like phonebooks for the internet
* allow someone to search the web for specific information
  - the user to search the Internet using keywords and categories
  - web users to search cataloged indexes of web pages by subject content
* analyze word content and organize the millions of Web pages they find.
* are Web pages that serve as applications to scan the Internet and index it
  - sites that help people find other Web sites based on certain search criteria
* are a form of advertising and very competitive advertising at that
  - popular method of finding relevant web sites
  - stable of connecting sellers, advertisers and consumers
  - useful tool in surfing the web
  - very important way that sites are found on the web
  - actually huge databases of websites
  - an extremely popular method of finding relevant web sites
  - areas on the web that allow anyone to find items easily
* are basically Web sites people use to find other Web sites
  - computer programs that make and maintain huge lists of information
  - database programs
  - giant directories on the Internet that allow users to find information
  - indexes of Internet sites
  - searchable databases of site information gathered from the web
  - brokers of information - sites created to help navigate the Net
* are computer programs that index information on the Web
  - search for words or phrases in internet documents
  - computer-generated searchable databases of Internet resources
  - content seekers
  - databases compiled by computer software that searches the Internet for sources
* are databases of information about web pages
  - web pages, and they are very useful
  - that contain indexed information
  - used to find Web sites
  - where people look up subjects of interest
  - department stores
  - different from browsers and directories
  - directories that scan keywords and finds a matching website
  - eccentric about how they index and rank web pages
  - electronic billboards
  - especially important to companies
  - essentially an index of documents on a portion of the Web
  - fast ways to search the web
  - giant databases that help provide subject access to the Web
* are huge databases of web sites and other internet resources
  - webpages that have been assembled automatically by machine
  - indexes of thousands of Web sites
  - website indexes that are searchable through the use of keywords
  - important to the success of the Web
  - indispensable tools for Web-based research
  - just webpages that have information about other webpages
* are large databases of Web sites which are catalogued in a user-friendly menu system
  - that hold information about web sites
  - largely the work of robots rather than of human beings
* are like huge databases that store information about millions of web pages
  - indexes of a book
  - machines lacking intuition when they search for documents
* are one of the least expensive and most successful forms of online marketing
  - most important marketing tools on the Internet
  - primary ways that Internet users find web sites
  - principle means by which online shoppers find online storefronts
  - only a small part of the Web
  - particular in how they rank sites when displaying results of a search
  - pieces of software that search an index and return matches
  - popular tools for locating web pages, but they often return thousands of results
* are programs on the Internet that allow users to search for files and information
  - that build indexes of the keywords or concepts found on web pages
  - written to query and retrieve information stored in a database
  - robotic indexers of keywords on many web pages
  - searchable databases of Web sites and other Internet resources
* are services that organize and index Web sites by subject, title or keyword
  - scan the Web in various ways for Web pages
  - sites on the Internet that serves as indexes of information
* are software applications that retrieve information from databases
  - tools that use keywords
  - powerful and utilized resources on the Web
  - special software programs designed to search the Web
* are specialized sites that help visitors find the web resources they are seeking
  - websites that collect information on other websites
  - statistical systems
  - supposedly neutral ways of finding information on the web
* are the 'telephone directories' for Internet websites
  - fastest growing business on the Internet
  - foundation on which the Web is built
  - key tool for locating information on the web
  - leading way users in the United Kingdom locate web sites
  - machinery that runs the Internet
  - major finding aid on the Internet
* are the most cost-effective means of advertising on the Internet today
  - crucial aspect of online marketing
  - familiar example of intelligent agents
* are the most popular and important places on the Web
  - means for people to find what they are looking for on the Web
  - tools that web users use to find new information on the Net
  - way to find information on the web
  - widely used tools on the internet
* are the number one way people find web sites
  - find webpages
  - only way most people have to find internet sites
  - phone books of the Internet
  - power of the Internet
  - products of underlying databases that use batch processing
  - software used to search databases
  - way most people find a web site
  - web's most popular way of finding information
  - workhorses of the Internet
  - yellow pages of the Internet
* are tools that assist Internet users in finding useful information on the Internet
  - people use to search the internet
  - provide some indexing of Internet resources
  - to find information on the Internet
  - useful tools that help users navigate through the web
  - vital to building web traffic
  - web pages themselves which index the Internet
* are web sites created to try to index the web
  - that make it easier to find information on the internet
* are web sites that specialize in finding other websites
  - indexing web pages in a particular fashion
* are websites running powerful search and indexing codes
  - that provide a means of searching the Internet for a particular subject
  - what most people think of when they think of web searching tools
  - where people go to find the web sites they are interested in
  - windows to the web
* behave differently than directories in that they index words in web documents
  - they index words in web site documents
* calculate keywords by how many times they appear on a page.
* can enable people to find products, services, and even people on the Internet.
* change the way they list websites regularly to give everyone a chance at the top.
* consist of massive databases which index millions of Web pages and their contents.
* contain all of the files that exist on the Web.
* crawl the web, indexing web pages by page title, body copy, and other elements.
* differ in coverage, indexing, and how they retrieve and present information.
* do fine jobs
  - have a habit of losing pages occasionally
* exist to make money from advertising.
* have different algorithms for ranking pages.
* help people find relevant information on the Internet.
* is some kind a tool on the web.
* play a key role in generating traffic.
* program that performs keyword searches for information on the Internet.
* provide a way to locate web sites usually by key word searches.
* recognize content on the Web by indexing documents whose content is stored.
* search the Web using programs called spiders or robots.
* send out electronic spiders that make copies of the pages they find on the web
  - web crawelers, or spiders, to search through websites on the internet
* use algorithms and other factors to index Web sites
  - complex algorithms and calculations when ranking search results
  - computers called ''spiders'' that continuously surf the Web
  - meta-tags in adding Web pages to their search indexes
  - metatags to categorize the content of a web page
  - mindless robots to scour the web to count keywords on pages
* use programs called spiders or bots to record content of Web pages as it goes
  - spiders, which only index HTML pages
  - ranking algorithms to organise hits in order of relevance to a query
  - robots or spiders to locate resources
  - software programs to gather and organize information
* use software robots to spider the Web and create their databases
  - survey the Web and build their databases
* use software to cruise all over the Web
  - scour the Web and create listings automatically
* use spiders or robots to index web sites, while directories use people
  - to build up their databases
  - spiders, crawlers, worms, or robots to inventory Web pages
* vary in how they work, how they are organized, and in how big and powerful they are
  - size, by method of searching, and by the way the search is performed
  - their methods of searching and in the numbers of pages that they search
  - widely in how and what they search
* work by having software 'robots' or 'spiders' that traverse the Web
  - sending out robots known as spiders
  - using key words and site names
  - in cycles