TopDir - top sites directory

TopDir is a human edited web directory with various categories, a collection of hand-picked web resources for visitors

TopDir offers free website promotion for webmasters and website owners. Relevant search results and many categories for adding and promoting websites. Free web promotion for websites at TopDir directory. Submit your url for review. A collection of hand-picked web resources for visitors. This page is focused on one particular aspect of Reference, Ask an Expert, Science.

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http://walrus.wr.usgs.gov/ask-a-geologist/

» Ask A Geologist - Do you have a question about volcanoes, earthquakes, mountains, rocks, maps, ground water, lakes, or rivers? A service of the earth scientists at USGS.

http://whale.wheelock.edu/whalenet-stuff/ASK_SCI.html

» Ask a Marine Science Expert - Email your question after checking the archive of previous questions and answers.

» Ask a Rocket Scientist - Explains design, technology, aerodynamics, history, space travel, and other topics related to aerospace engineering.

» Ask A Scientist - You can ask a scientist a question on the WWW MadSciNet: The 24-hour exploding laboratory.

» Ask An Aviculture Expert - Birds and bird care questions. Not a substitute for a trip to the vet.

http://www.soest.hawaii.edu/GG/ASK/askanerd.html

» Ask an Earth Scientist - Experts at the U of Hawaii answer questions about volcanoes and igneous rocks, earthquakes and seismology, natural disasters, geochemistry, the environment, pollution, hydrology and water quality, minerals, gems and crystals, geophysics, sediments and sedimentary rocks, and just plain ol' geology.

» Ask Dr. Universe - Dr. Universe has a whole university full of experts ready to tackle your question on any subject. Explore the question of the day, and longer featured answers.

http://www.sra.dst.tx.us/srwmp/mr_water_wizard/default.asp

» Ask Mr. Water Wizard - Do you have questions about water? Questions about water quality in some nearby stream or lake? About drinking water? About water quality testing? About aquatic life such as fish, turtles, snakes, and insects, in your local waterways? Mr. Water Wizard can help.

http://www.seaworld.org/ask-shamu/faq.htm

» Ask Shamu - Ask and read archives of questions and answers. Mainly about marine biology and the environment.

http://image.gsfc.nasa.gov/poetry/ask/askmag.html

» Ask The Space Scientist - Ask a question and check out the archives for the many questions asked at this site.

» Curious about Astronomy? Ask an Astronomer! - Browse archives of previous questions and answers, or submit a question to be answered by astronomers at Cornell University.

» How Things Work - Ask about almost anything related to the physical world, and check the well-organized archives for answers to previous interesting questions.

» NEWTON Bulletin Board System - Ask-a-scientist service designed for K-12 teachers and their students - operated by the Argonne Nat'l. Laboratory, Div. of Educational Programs.

http://www.physlink.com/Education/AskExperts/Index.cfm

» Physlink - Ask Experts Physics and Astronomy Questions - Ask questions and check out the archives, organized by topic.

http://www.sciam.com/askexpert_directory.cfm

» Science Questions & Answers - Expert responses to questions on biology, chemistry, geology, and other branches of science.

» What is? What! - Aims to give you easy answers to everyday questions. We define words, acronyms, and ideas. We have a computer-related and open-source slant.

» WonderQuest with April Holladay - Check out the archives at WonderQuest, or ask a question for answers to conundrums about the world around us.

TopDir is a human edited web directory with various categories. Our mission is to organize theme based websites and remove the clutter from the information. We strive to provide context based website results to our visitors. This directory is an evolving one and we regularly add new categories, if there is a necessity. Members can suggest new categories and websites for inclusion. This is one stop promotion site for webmasters and website owners. We invite you to browse the categories and suggest your website url for an editor review. This page is focused on one particular aspect of Reference, Ask an Expert, Science.

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Web directories list the websites by theme. The links in a web directory are collected, edited and organized by humans. Yahoo and Dmoz ODP(Open Directory Project) are considered as the best human-edited web directories on the Internet and they are one of the most trusted and relied traffic sources. Since these directories get thousands of submissions every day, it is sometimes difficult to get listed in them and your URL may take a long time to be reviewed and listed. Generally good directory listings give a surprise boost to your link popularity.