A Voyage to Arctucus: Jay Manifold's blog about science and scientific applications.
All These Worlds: Weblog with reflections on current news. Emphasis on science and space news.
Alternative Energy Blog: News, views and strong opinions on alternative, particularly renewable, energy sources.
Another World Is Here: Collaborative blog dedicated to current events and news, also covering scientific issues.
Astro-Blogging: Musing of an amateur astronomer. Covering astronomical happenings among the planets, stars and beyond.
Bad Astronomy Blog: Commentary on astronomy news and space-related myths and misinformation.
BioCurious: Physicists exploring an interest in biology.
Biopeer: Weblog of a global life sciences and medicine research community.
Blog Of Science: Weblog of scientific news, articles and commentary.
Cosmic Log: Weblog by MSNBC.com science editor Alan Boyle, with daily science and space news and links.
Cosmic Variance: Group weblog co-written by five physicists and astrophysicists.
Cosmic Watercooler: Discussions of science, skepticism, mythology and religion, nursing, and current events.
Discovering Biology in a Digital World: Educational weblog centering on computational biology and genetic research.
Dotdotdot: Fun at the science disco - a light-hearted look at science and life as a microbiology researcher.
Dura Mater: Odd Bits From a Distracted Scientist's Brain: Reflections on science and technology news and its influence on society.
Epigenetics News: News and opinions on research and developments in the field of epigenetics.
FuturePundit: Future technological trends and their likely effects on human society, politics and evolution.
Gooz News: Pharmacology writer Merrill Goozner comments on science, health and the public interest.
Gyre.org: Gyre.org is an attempt to track the breakthroughs and implications of the next military and technological revolutions.
Henry's Webiocosm Blog: Observations and photography in biology, botany and zoology.
Impact Lab: The DaVinci Institute present scientific breakthroughs and innovative technologies.
In The Pipeline: Weblog about developments in pharmacology and chemistry by a working researcher at a drug company.
Life Studies Blog: Discussion about philosophy of life, death, nature, science and technology, and their impact on contemporary culture & society.
Lubos Motl's Reference Frame: News, opinion and political commentary relating to string theory, mathematics and physics.
Mathforge: News and discussion about current events in mathematics and general science, plus tools for the communication of mathematical ideas.
Migrations: Cells, birds and musings from a biologist.
Mr Science: Features information about a science TV show, summaries of news articles, and podcast links. Page includes photos.
NASA Orion Spaceship Blog: News relating to NASA's Orion Spaceship and it's mission to take astronauts to the Moon and Mars.
Nature Newsblog: News weblog of Nature periodical, allowing readers to comment on recent developments in science and technology.
Nodalpoint: Newsfeed from this community of bioinformaticians and biotechnology researchers.
Not Even Wrong: Physics and mathematics discussion from the author at the front line of the string theory controversy.
Philoneist: A digest of technology and health stories.
RealClimate: Commentary on climate science news by working climate scientists, with discussion.
Resonance TV: Former Physics teacher writes about science, culture and politics, with emphasis on mathematics.
RobBlog: Science News and Opinion: Digest of science news from a wide range of sources, with commentary.
SciAm Observations: Opinions, arguments and analyses from the editors of Scientific American.
Science Blog: General science and technology news blog.
Science in Action: Explorations of science and math in the real world, with topical comments, unexpected connections and weird facts.
Science Musings Blog: A regular meditation on humankind's quest to understand the universe.
Science Surfing: Topic-specific overviews of free-access online scientific sources.
ScienceBase.com: Science news and features plus commentary by science journalist and writer David Bradley.
ScienceBlogs: A community of 40 selected science bloggers, set up as an experiment in scientific communication.
ScienceNewsBlog.com: Provides coverage of space and science news.
SciScoop: Community edited science blog and discussion forum.
Short Sharp Science: A science news blog from New Scientist.
So I Want To Be An Astronaut: A Kuwaiti girl dreams of being an astronaut, and becoming the first Kuwaiti, Arab, Muslim female to go into space.
Space Spin: News and technological innovations in space exploration.
spacebar: Commentary on science and general interest news stories, plus art and photography postings.
Stem Cell Research Process Blog: Weblog charting developments and discussing current opinions in this field.
The Flame Trench: Dispatches on all things space from the Florida Today blockhouse at the Kennedy Space Center.
The Geomblog: Ruminations on computational geometry, algorithms, theoretical computer science and life.
The Loom: Commentary and edification on evolution, biology and more by science author Carl Zimmer.
The OpenScience Project Weblog: Weblog of a collaboration encouraging the production and release of open source scientific software.
The Sceptical Chymist: New and exciting developments in chemistry and chemical biology from the editors of Nature and associated journals.
theWatt: News and discussion about energy, fuels and the environment.
Thoughts From Kansas: Weblog of a University of Kansas ecology and evolutionary biology student, fighting for progressive politics, evolution, and endangered species.
Useful Chemistry: Open source chemistry weblog, discussing online resources and solutions to computational and practical problems.
What's New by Bob Park: A weekly satirical and skeptical take on current news by an officer of the American Physical Society.
World Science Blog: Comments and perspectives from readers of the global science news site.
Z+Blog: Pointers and commentary on emerging future issues.