* Alternative Photography Homepage - Mike Ware's
* Daguerreotypes: 19th Century Photography
* Dye Transfer-Ultimate Color Print(Ctein)
* The Daguerreian Society
* Ultrastable
* Artcraft Chemicals
* Archivalmethods
* Bulldog products
* Photographers' Formulary, Inc.
* GOLDEN Artist Colors
* Graphicstar
* Isis - Quadtone print
* Lysonic inks
* The Stock Solution - Digital Accessories
* Wilhelm Imaging Research, Inc.
* Abundant Forests Alliance US
* Associação Brasileita Técnica de Celulose e Papel BR
* Associação Brasileira de Celulose e Papel - Bracelpa BR
* The American Forest & Paper Association AF&PA US
* Carbonfund.org US
* Carbon Mitigation Initiative US
* Chlorine Free Products Association US
* Conservatree - environmental papers US
* Design can Change US
* Envirolink - Environmental Resources US
* Environmental Protection Agency US
* Forest Stewardship Council (FSC) US
* FSC Chain of Custody (CoC) certification US
* Green-e US
* INGEDE - International Association of the Deinking Industry
* Instituto "O Direito por Um Planeta Verde"BR
* Intergovernmental Panel on Climate Change
* Paper Calculator.org US
* Ministério do Meio Ambiente BR
* National Oceanic and Atmospheric Administration National Climatic Data Center
* Rainforest Alliance US
* RealClimate US
* Sustainable Forestry Initiative* (SFI) US
* Union of Concerned Scientists US
* Amazon - books
* Barnes&Noble
* Bookfinder
* Bowker - ISBNs and Database Services for Publishers, Libraries, and Booksellers
* ESCOLA DO ESCRITOR
* Estante Virtual - rede de sebos no Brasil
* Fábrica de Livros
* Leonardo da Vinci - Livraria Virtual
* Macmillan Computer Publishing
* Photo-Eye Books
* The MIT Press
* Dictionary.com
* Merriam-Webster Online Dictionary
* The Chicago Manual of Style Online
* Visual Thesaurus
* Fundação Biblioteca Nacional (Rio)
* La Bibliotheque Nationale de France
* United States Postal Service
* Empresa Brasileira de Correios e Telegrafos(Postal)
* Ministerio da Fazenda do Brasil
* Instituto Nacional de Propriedade Industrial
* The Aerodrome - Aces and Aircraft of World WarI
* Color Management.com
* GAIN -- Graphic Arts Information Network
* Graphic Arts Technical Foundation (GATF)
* ICC - The International Color Consortium
* International Prepress Association
* SWOP
* Targets, gray scales
* Wilhelm Imaging Research, Inc.
* Advertising Age
* Adweek Online
* ApliedArts
* Apogee Photo Magazine
* Artistry
* British Journal of Photography
* Computer Graphics World
* Communication Arts
* Creativepro.com
* Dynamic Graphics
* DV Live
* Graphics.com
* How
* Macworld Online
* National Geographic
* New Scientist Planet Science
* PHOTO
* PhotoshopNews
* Photographers Ru
* PDN-Photo District News
* PC Magazine
* PopPhoto
* Professional Photographer
* PUBLISH
* Plugs 'N Pixels
* RedTop - Photography Online
* Shutterbug Magazine Web Edition
* SmashingMagazine
* Smithsonian Magazine
* The UNESCO Courier
* The Digital Journalist
* Typographica
* U&lc - Upper e Lower Case
* Webmonkey: The Web Developer's Resource
* Wired
* ZOOM
* Accu Weather
* CNN - Weather
* EarthWatch - Weather On Demand
* Marine Weather.Com
* NOAA-NWS - Internet Weather Source
* time and date.com
* Anglo Australian Observatory
* Armagh Planetarium
* Big Bear Solar Observatory
* Caltech Astronomy
* Cambridge Astronomy
* Circolo Astrofili Bergamaschi
* Exploratorium
* Galileo - SSI (Solid State Imaging)
* HEASARC/GSFC
* HUBBLE - Space Telescope Science Institute
* The European Homepage For The NASA/ESA Hubble Space Telescope
* JPL SIR-C/X-SAR Images (NASA)
* JHU/APL maps (links)
* NASA Homepage
* NEO - NASA Earth Observatory
* NCSA : The National Center for Supercomputing Applications
* NOAA
* NOAA Central Library - Photo Collection
* NSSDC
* Stellarium
* Rocketry.Org
* TRIPOLI Rocketry Association
* Animais de Circo - ANIDA
* Dian Fossey Gorilla Fund
* Envirolink - Environmental Resources
* Mountain Gorilla DATABASE
* The Gorilla Foundation
* The Jane Goodall Institute
* The Nature Conservancy
* WWF-US: World Wildlife Fund
* Sea and Sky
* Sloan Digital Sky Survey
* StarView
* The Astronomical Society of the Pacific
* The Hubble Deep Field
* The Smithsonian Institution
* The Visible Human Project
* PDFX
* Planet PDF
* PDF Research
* Amarillas - Ar
* La Brujula - Ar
* Aonde - BR
* Auxilio-a-Lista - BR
* BoaDica - Pesquisa de preços
* BrazilBiz2Biz - BR
* Bulas de Medicamentos
* Buscas - BR
* Cade - BR
* Domínio Público - Pesquisa Básica
* Fapesp - Pesquisa de Domínios - BR
* Lokaliza - BR
* AEIOU - Pt
* SAPO - Pt
* Alta Vista - USA
* Alexa - USA
* Dogpile US
* Excite - USA
* Google Search Engine - EUA
* Green Maven - USA
* HostSearch
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* MetaCrawler
* Open Directory - DMOZ
* Starting Point - USA
* Web Search - USA
* Yahoo - USA
* Addict-o-matic
* Digsby
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* Gravatar - Globally Recognized Avatars
* #hashtags.org
* Less Friends
* Mr. Tweet - Your Personal Networking Assistant
* Nearby Tweets
* Ping.fm
* Retweetrank
* Splitweet - Twitter multi account manager, brand monitor
* TinyURL.com - shorten that long URL into a Tiny URL
* TweepSearch
* TweetBeep
* Tweetburner
* TweetLater.com
* TweetScan
* TweetTag
* Twitter
* TwitterGroups - groups in Twitter
* TweetStats
* TwitterFeed
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* TwitterPic
* Twibs - Twitter business directory
* Twingly - Microblog Search
* Twubble
* Twitterholic.com
* WeFollow - Twitter Directory
* Bad Neighborhood Tool
* Google Analytics
* Backlinks Whatch
* Bruce Clay - Internet Marketing and Website Promotion
* Copyscape
* Google Analytics
* Google AdWords: Keyword Tool
* High Rankings - forum
* List of NO-FOLLOW forums
* KeywordSpy
* Link Harvester
* Live Search - Webmaster Center
* Marketleap Search Engine Marketing Tools
* Myriad Search - meta search
* SEOTools
* SEO Chat
* Search Engine Marketing Tips- Search Engine Watch
* Search engine SPAM detector
* Test your web design in different browsers
* Trifecta Page/ Site/ Power tool
* WordTracker - keyword suggestion tool
* Xinu - Check quickly your PageRank, backlinks
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