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Feed43 engine converts free-form HTML or XML documents to valid RSS feeds by extracting snippets of text or HTML by means of applying search patterns, and then joining these snippets together using output templates to form user-friendly content of feed's items. The principle of extracting specific data from source documents is also known as “HTML scraping”.
The procedure of setting up a feed is the following:

  1. Find a web page with the content that interests you.
  2. Create a new feed on our site, which points to that web page.
  3. In feed parameters, define search patterns and output templates for this feed, and get the link to your feed.
  4. Subscribe to this feed using your favorite feed reader (aggregator).
  5. Optionally, protect your feed with password so no one could alter it.

Once the feed is set up, the service works as follows:

  1. Your feed reader sends request to our server to download the feed.
  2. Feed43, in it's turn, downloads the original source URL, processes it, converts to valid RSS feed on the fly, and returns it to feed reader application.
  3. Feed reader displays the contents of this feed to you.

Search patterns are used to extract snippets of text or HTML from source documents. Search patterns can be treated as regular expressions, yet very easy to understand and write.
Output templates are used to join these snippets together to form user-friendly content of feed's items.
Here is the simple example that describes this idea.
Let's say, we need to create a feed that reports current weather, and have found a web page with the following source code:


…[content goes here]…


…[content goes here]…

<h1>Weather in Washington</h1>

…[content goes here]…

<div class="content">
UV Index: 1 Low<br/>
Wind: From SSE at 9 mph<br/>
Humidity: 69%<br/>
Pressure: 30.02 in.<br/>
Dew Point: 46&deg;F<br/>
Visibility: 10.0 miles<br/>

…[content goes here]…

We can create the following search pattern:
<h1>{%}</h1>{*}<div class="content">{%}</div>This means: take everything between <h1> and </h1> as a first snippet (which can be referred as {%1} in output template), then take everything between <div class="content"> and </div> as a second snippet (referred as {%2}).
If we apply this pattern to the above html source, we will get the following list of snippets:
{%1} = Weather in Washington
{%2} = UV Index: 1 Low<br/> Wind: From SSE at 9 mph<br/> Humidity: 69%<br/> Pressure: 30.02 in.<br/> Dew Point: 46&deg;F<br/> Visibility: 10.0 miles<br/>
Now we can define output template, which combines these snippets together:
<b>{%1}</b><br/>{%2}Here {%1} is substituted with the first snippet, and {%2} — with the second.
Thus, we get the resulting html code:
<b>Weather in Washington</b><br/>UV Index: 1 Low<br/> Wind: From SSE at 9 mph<br/> Humidity: 69%<br/> Pressure: 30.02 in.<br/> Dew Point: 46&deg;F<br/> Visibility: 10.0 miles<br/>

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    Christian Science Monitor Science.

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    RSS feeds on

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    NOVA scienceNOW Podcasting and RSS.

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    Reuters: Science News.

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Find science stories from Slashdot compiled here.

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Biological Sciences

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    Evolution RSS Feeds.

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    Biology News Net RSS Feeds.

Choose from 12 specific topics or one feed that features news from all of the topics from Biology News Net.

    Biology RSS Feeds.

These feeds from Scientific American include topics such as animals, biodiversity, and cloning.

    Biology/Biochemistry News.

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Space and Astronomy

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    Space RSS Feeds.

These feeds include topics such as black holes, dark matter, cosmology, and human space exploration that each have their own feed.

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    Yahoo! Space.

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    NatureNews – Space and astronomy.

This source offers news on space research and exploration.

    NPR Topics: Space.

Astronomy, astrophysics, and space exploration are the news topics you’ll find here. – Science & Space.

Get space news from CNN when you subscribe to this feed.


This online magazine offers an RSS feed to keep you current right in your reader.

This site offers three different feeds to stay current on space news.

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Subscribe to this feed and you will not only stay current on astronomy and other science news, you will also be reading one of the more popular science blogs on the Internet.

nvironment and Sustainability

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This feed provides climate science news and analysis from real climate scientists.

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The New York Times reports their news on the environment and posts updates on their RSS feed here.

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Stay on top of the news items touching on climate science, endangered species, pollution, and the environment.

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Science News online
ScienceNow (Science)
Science News online
Science Daily: Top-historier om ny forskning. (Science news from universities and research institutions: Top stories)
Science Daily: Overskrifter af daglige videnskabelige nyheder (Science news from universities and research institutions: Headlines)
Science Daily: Hits – meget læste artikler om forskning (Science Daily – science news from universities and research institutions: Review hits)
Science Daily: Index
Science Daily: Søgning efter videnskabelige nyheder (Science Daily – science news from universities and research institutions: Search-news)
Science Daily: Nye historier om forskning (Science Daily – science news from universities and research institutions: New releases)
Science daily: Sammendrag af daglige videnskabelige nyheder (Science Daily – science news from universities and research institutions: Summaries)
Science Times (The New York Times on the web)
Scientific American
BBC News Online – Science
BBC World Service – Science & Technology
Forskning og Framsteg
Forskning & Framsteg
Popular Science. (A division of Times Mirror Magazines
La Recherche
Pressemeddelelser om europæisk forskning; emner: biologi/medicin, energi, informationsteknologi, materialelære, miljø (Cordis Scientific Press Service)
EurekaAlert – adgang til pressemeddelelser
Integrated Newswire – Science and Technology (Nature/ Anita Ryan:
Science in the headlines – amerikanske nyheder
Aktuel Naturvidenskab
BioMedNet-H.M.S.Beagle (biologisk/medicinsk forskningsnyheder)
EurekAlert (Produced by the American Association for the Advancement of Science. News releases from research and medical institutions)
Complexity Digest; forskningsnyheder samlet af en fondsbaseret serviceorganisation
ABC News: Science
National Geographic
Forskningsnyheder samlet af National Research Council, USA
ABC News in Real Audio
ABC Radio National – Earthbeat
ABC Online — The Lab
Access Online
Alaska Science Forum
American Scientist
Annual Science Reviews
Other APS Research Journals
"Arctic Science Journeys"
Armchair Scientist
ASU Research
The Better World Magazine
Bild der wissenschaft
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Breakthrough: Television's Journal of Science and Medicine
The Brookhaven Bulletin
Business Week
CBC Morning News: Lifelines
CBC Newsworld Online
The Chronicle
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CNN homepage
Cornell Chronicle
Cornell Science & Technology Magazine
Cornell University News Service
Cornell: Forefronts
CPR Worldwide
Discover Magazine
Discovery Channel
Discover Magazine
Discovery Channel, Canada "Exploration Network"
Disney's "Bill Nye the Science Guy"
Duke Research
The Earth Times
CNN: Earth
Earth (Earth Magazine)
The Economist
Focus Magazine (eng)
Focus Online (tysk)
Fortune Magazine
Forskning i Frankrig. (FAST: French Advances in Science and Technology: An English-language review of mainstream French press on issues of science and technology in France)
Frontiers: A newsletter of the National Science Foundation
Harvard Science Review
HHMI Bulletin
Imperial College Research News
INFORM Magazine
Inside Science Television
Johns Hopkins Magazine
Landcare Research NZ Ltd
LBNL Research Review
Media Resource Service
National Geographic
Natur & Videnskab
Ny Teknik
OMNI Magazine
PBS Online
Proceedings of the National Academy of Sciences
Popular Mechanics
Population Council
Population Action International
Purdue University Press
Purdue University: Forefront
Ny forskning fra radioen. (Science news coverage from radio)
Research News
Research Reporter
Research Good News
Research in Review
Research & Creative Activity
Research Corporation
Research/Penn State
Noonan/Russo Communications
"Science Friday"
Science Report
Scientific American Frontiers
The Scientist
SciTech: (Science and technology stories fra Artigen)
Smithsonian Magazine
"Sounds Like Science"
Spiegel on-line
Svenska massmedier
Technology Review
Time Daily
Time Magazine
United Nations News
The Why Files: Forklaring af ny forskning. (Science behind the news. Topics as diverse as cloning and school violence. "Whyfiles")
Rx: Women Weekly Report
U.S. News & World Report
Danmarks Radio – videnskab
Danmarks Radio – videnskabens Verden
Berlingske Tidende – videnskab
Århus Universitet – Naturvidenskabelige Fakultet

Oversigt over tidsskrifter om forskning (samlet af Science Daily)

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