http://infomine.ucr.edu/search/phscisearch/ - INFOMINE makes access easy to all types of internet resources of scholarly use to UC faculty and students interested in the physical sciences, engineering, computing and mathematics. The file contains over 1,000 resources. Among these you will find preprint bulletin boards, databases, electronic journals, subject guides and software repositories, among others.
http://ww.sciencenews.org/search/ - Search Science News archive of online articles. Look for articles by keyword, and you'll find plenty of entries concerning your topic.
http://unisci.com/ - UniSci was the first science daily news site on the web, and remains the only one that selects stories based on their scientific importance. As a result, UniSci counts many laboratory scientists among its readers.
http://www.sciencenet.org.uk/qpages/search.html - ScienceNet is a free public science information service containing information in the following areas: archaeology, palaeontology, biology, medical science, chemistry, environmental science, geography, earth science, maths, computing, physics, astronomy, sociology, psychology, and technology.
http://www.scinet.cc/ - Search SciNet for the topic of your choice to bring up hundreds of scientific articles on that subject.
http://www.madsci.org/ - The MAD Scientist Network is a collective cranium of scientists providing answers to your questions. For good measure they provide a variety of oddities and other ends as well.
http://www.sciencedaily.com - ScienceDaily Magazine is your link to the latest research news. Search the archives at the bottom to find stories and articles about whatever interests you.
http://www.sciseek.com/ - SciSeek is a great guide to the best the internet has to offer in the fields of science and nature. Styled like a conventional internet guide, this service lists websites covering subjects from agriculture and forestry to engineering, chemistry, physics, and the environment.
science.komm - Search science.komm for scientific and medical news articles
and abstracts.
http://www.nsf.gov/ - The National Science Foundation is an independent U.S. government agency responsible for promoting science and engineering through programs that invest over $3.3 billion per year in almost 20,000 research and education projects in science and engineering.
http://library.thinkquest.org - The Science Explorer contains tutorials and experiments in four main areas of science: biology, chemistry, physics, and math.
http://www.moonboy.com/sms/index.htm - Science Made Stupid is a website with various scientific information converted into its comedic form. If you're looking for some scientific humor, go to this site and see it in all its glory. If not, stay away.
http://www.sciam.com/ - Each week Scientific American will track the breaking new stories and provide readers with links to related sites. Called explorations, these features will guide online readers through the overwhelming wealth of information on the internet. By linking to other relevant WWW sites and historical sources from Scientific American, readers can take a guided tour of recent technological developments. They will provide background, links to directly related information, and key insights into the investigators themselves. Draw your own conclusions about the newest discoveries of the day.
http://www.popsci.com/ - This is the official website for Popular Science magazine, and it's full of articles and other science info. Check it out.
http://www.sciquest.com - SciCentral has many divisions, including a useful section for locating times and locations of upcoming conferences and events.
http://www.sciencedaily.com/ - ScienceDaily is one of the internet's leading online magazines and web portals devoted to science, technology, and medicine. The free, advertising-supported service brings you breaking news about the latest discoveries and hottest research projects in everything from astrophysics to zoology.
http://www.sciserv.org/ - Science Service is a non-profit organization dedicated to advancing the understanding and appreciation of science among people of all ages through publications and educational programs.
http://www.prodevelop.net/sciences1.htm - ProDevelop.Net brings you a comprehensive list of online science magazines. Scan down the list to find your favorite magazine, or maybe try out a new one. There's enough here to choose from.
http://www.amara.com/science/science.html - This is Amara's Science Links, part of her personal homepage, but it does contain numerous links to scientific pages, and you may just come across exactly what you're looking for. Give it a try.