• The Biology Project: This is an online interactive biology project put together by the University of Arizona.  It is a great place to get interactive multimedia tools to help reinforce learning.
• Tree of Life Web Project:  This site is a collaborative web project, produced by biologists from around the world. On more than 2600 World Wide Web pages, the Tree of Life provides information about the diversity of organisms on Earth, their history, and characteristics.
• Action Bioscience:  This web site provides articles by scientists, science educators, and science students on issues related to seven bioscience challenges: environment, biodiversity, genomics, biotechnology, evolution, new frontiers in science, and bioscience education. In addition, the web site provides educators with lessons and resources to enhance bioscience teaching.
• IUSSI:   This site contains links on social insects.

• Deep Green - Green Plant Phylogeny Research Coordination Group: This site is a site dedicated to green plants and understanding the diversities that can be found within their group.
• Royal Botanic Gardens, Kew:  This organization's mission is to enable better understanding of the earth's environment by increasing knowledge and understanding of the plant and fungal kingdoms - the basis of life on Earth.
• TreeBASE:  TreeBASE  a relational database of phylogenetic information hosted by the University at Buffalo. In previous years, the database has been hosted by Harvard University Herbaria, Leiden University EEW, and the University of California, Davis. TreeBASE stores phylogenetic trees and the data matrices used to generate them from published research papers.
• PLANTS National Database:  The PLANTS Database provides standardized information about the vascular plants, mosses, liverworts, hornworts, and lichens of the U.S. and its territories. It includes names, plant symbols, checklists, distributional data, species abstracts, characteristics, images, plant links, references, crop information, and automated tools.
• Harvard University Herbaria Databases:  IPNI is a joint project with the Royal Botanic Gardens, Kew and the Australian National Herbaria to provide an online database of the names and associated basic bibliographical details of all vascular plants.
• Ada Hayden Herbarium:  The Ada Hayden Herbarium has the largest collection of Iowa plants and fungi, containing over 400,000 specimens of vascular plants, bryophytes, fungi, and lichens. Functioning primarily as a research facility important for taxonomic studies (occurrence, distribution, and relationships of plants), it is also used for identifying unknown plants.
• Missouri Botanical Garden:  Many entertaining and spectacular events take place throughout the year on the Garden grounds and at the Shaw Nature Reserve in Gray Summit, Missouri. The Garden offers a place of serenity amidst the hustle of the city. Thousands visit the Garden every year for gardening tips.

• The Nature Conservancy: The mission of The Nature Conservancy is to preserve plants, animals, and natural communities that represent the diversity of life on Earth by protecting the lands and waters they need to survive.
• Northern Prairie Wildlife Research Center:  The Biological Resources Division of the U.S. Geological Survey works with others to provide the scientific understanding and technologies needed to support the sound management and conservation of our nation's biological resources.
• World Wildlife Fund (WWF):  World Wildlife Fund (WWF) is dedicated to protecting the world's wildlife and wild lands.
• UNEP World Conservation Monitoring Centre:  The World Conservation Monitoring Centre provides information services on conservation and sustainable use of the world's living resources, and helps others to develop information systems of their own.

National Geographic:  This site is dedicated to different mappings available through National Geographic.

• Black Hills State University:  This is the official homepage of Black Hills State University in Spearfish, South Dakota.
• Black Hills State University Herbarium: The Herbarium maintains the world's most extensive collection of Black Hills plants. Some specimens are over 100 years old, and provide a good record  of changes in biodiversity, as well as a storehouse of genetic information.  The herbarium is also home to several thousand specimens of fossil plants, especially fossils from the Great Plains of North America, including a number of types of collections. These fossils are irreplaceable, contribute to our knowledge of past environments and provide a record of climate changes over the last 30 million years.  The holdings of the herbarium include approximately a thousand specimens of macrofungi, lichens and slime molds.  Most of the specimens are state records, and are frequently the only records of fungi from the region.
• Local Weather: This is the weather report for Spearfish, South Dakota, reported by Spearfish High school.
• South Dakota's Homepage:  The official homepage of the state of South Dakota, which contains many government links.
• The South Dakota Natural Heritage Program:  The South Dakota Wildlife Diversity Program's primary goal is to inventory, protect, and manage the species and habitats that comprise the biological diversity of South Dakota in a manner that meets the needs and desires of the people of the state. The Wildlife Diversity Program maintains the South Dakota Natural Heritage Program, works to improve the public's understanding of wildlife diversity issues, and takes conservation measures to sustain all native plants and animals and associated habitats. By taking a proactive approach to sustaining native species, listing of species as threatened or endangered can often be prevented.
• South Dakota Academy of Science: The South Dakota Academy of Science endeavors to develop interest in science, to strengthen the bonds of fellowship between scientists, those interested in science, and students of science, to preserve information of scientific value, and to stimulate research in areas that relate to the natural resources of the state.

• Palaeontologia Electronica:  This is a graphical site that includes many different articles about paleontology topics.
• PaleoNet:   PaleoNet is a system of listservers, www pages, and ftp sites designed to enhance electronic communication among paleontologists. While primarily designed as a resource for paleontological professionals and graduate students, PaleoNet welcomes input and participation from all persons interested in the study of ancient life.

• American Society for Microbiology:  The American Society for Microbiology is the oldest and largest single life science membership organization in the world. Membership has grown from 59 scientists in 1899 to over 42,000 members located throughout the world today. ASM represents 25 disciplines of microbiological specialization plus a division for microbiology educators.
• The Society for Conservation Biology:  SCB is an international professional organization dedicated to promoting the scientific study of the phenomena that affect the maintenance, loss, and restoration of biological diversity. The Society's membership comprises a wide range of people interested in the conservation and study of biological diversity: resource managers, educators, government and private conservation workers, and students.
• National Science Teachers Association:  The National Science Teachers Association (NSTA), founded in 1944 and headquartered in Arlington, Virginia, is the largest organization in the world committed to promoting excellence and innovation in science teaching and learning for all. NSTA's current membership of more than 53,000 includes science teachers, science supervisors, administrators, scientists, business and industry representatives, and others involved in and committed to science education.
• American Association for the Advancement of Science:  The American Association for the Advancement of Science, "Triple A-S" (AAAS), is the world's largest general scientific society, publisher of Science.
• The American Society for Cell Biology:  The American Society for Cell Biology (ASCB) was founded in 1960 to bring the varied facets of cell biology together. The Society's objective is to provide for the exchange of scientific knowledge in the area of cell biology. It does so through the scholarly dissemination of research at its Annual Meeting and in its publications, and strives to ensure the future of basic scientific research by providing training and development opportunities for students and young investigators, and also by keeping Congress and the American public informed on the importance of biomedical research.
• Paleontological Society:  The Paleontological Society is an international organization devoted exclusively to the advancement of the science of paleontology through the dissemination of research by publication and meetings. 
• Botanical Society of America:  The Botanical Society of America exists to promote botany, the field of basic science dealing with the study and inquiry into the form, function, diversity, reproduction, evolution, and uses of plants and their interactions within the biosphere. To accomplish this mission, the objectives of The Society are to: sustain and provide improved formal and informal education about plants; encourage basic plant research; provide expertise, direction, and position statements concerning plants and ecosystems; and foster communication within the professional botanical community, and between botanists and the rest of humankind through publications, meetings, and committees.
• American Society of Plant Taxonomists:  The American Society of Plant Taxonomists promotes research and teaching in the taxonomy, systematics, and phylogeny of vascular and nonvascular plants.
• The American Institute of Biological Sciences:  The American Institute of Biological Sciences (AIBS) is dedicated to advancing biological research and education for the welfare of society. AIBS seeks to facilitate communication and interactions among biologists, professional biological societies, biological and other scientific disciplines, as well as to serve and advance the interests of biology in the broader scientific community and in other components of society.
• Animal Behavior Society:  The Animal Behavior Society is a non-profit scientific society, founded to encourage and promote the study of animal behavior. ABS members are from all over the world, but primarily from North, Central, and South America. Membership is open to those interested in the study of animal behavior.
• International Union for the Study of Social Insects:  The International Union for the Study of Social Insects was formed to facilitate communication among social insect researchers worldwide.  IUSSI stands for the International Union for the Study of Social Insects. They are a worldwide scientific society devoted to research on social arthropods, including bees, ants, termites, and wasps.