I saw this on Arizona Geology (big surprise). German blogger geoberg.de has compiled a list of 101 geoblogs - I'll have to check a few of these out. They missed this blog, but we're relatively new and not the most prolific site, though it still stings a bit.
General
- About Geology by Andrew Alden - diverse geoscientific news and information
- Earth Learning Idea - every week a new geodidactic idea
- The Accretionary Wedge - Blog collecting the results of geoblog carnivals
- EffJot by Florian Jenn (partly in German)
- geoberg.de-Blog by Lutz Geißler - News and more about geosciences, especially economic geology (in German)
- The GeoChristian by Kevin Nelstead - Blog about geosciences from a view of a Christian
geolismus.de by Lutz Geißler and guest authors - Blog about public relations and education in geosciences and mining (in German) - Geological Musing in the Taconic Mountains by John van Hoesen - diverse topics from field works to history of geology
- Geology Happens - experiences and results of the authors field work
- Geology News by Dave Schumaker - geoscientific news
- Geology News by Hobart King - geoscientific news
- Geotripper - geology of the Western USA
- goodSchist - posts from geology to astronomy (inclusive the “podClast”)
- Gunnars Geo-Blog - links to geoscientific papers and news (in German)
- The Limonit Blog - diverse geoscientific topics
- The Lost Geologist - geological life and research of a German geology student
- Lounge of the Lab Lemming - Blog of a geochemist and field geologist
- The Musings of a Life-Long Scholar - Blog of a long-life geostudent
- NOVA Geoblog by Callan Bentley - diverse geoscientific topics, especially about education
- Olelog by Ole Nielson from Denmark - from tectonics to volcanism, climate change, mineralogy and more
- Ron Schott’s Geology Home Companion Blog by Ron Schott - Blog about GigaPan (among other topics)
- Terra incognita - diverse geo-topics (in Swedish)
(Palaeo-) Climatology
- James’ Empty Blog by James Annan - Blog about climate research, prediction and policy
- Real Climate - Blog about climate science from climate scientists
Geo-Hazards / Geoengineering - Dave’s Landslide Blog by David Petley - landslide news and research
- Geomorphic Hazards by Dawn and Dave Nicholson - news and links about geo-hazards
- GeoPrac.net - Blog about geoengineering and related topics
- Strike Slip - news about extreme geo-cataclysms
- The Great Southern California ShakeOut - official blog of the Shake Out “event”
Geo-Information (GIS etc.)
- The Geo Factor by Ron Exler - Blog about GIS, GPS etc.
- Geologic Froth - blog about geoscientific data-processing with focus on GPS and GIS
- MiGeo - Blog from Peru about web-based geoscientific applications (in Spanish)
Geomorphology - Arctic and Alpine by Dawn and Dave Nicholson - news, discussions and links about geomorphology in cold climates
Geophysics
- Green Gabbro by Maria Brumm - diverse geophysical and general geoscientific topics
- Harmonic Tremors - articles about seismic and seismology
- Hypo-theses - earth quakes and more
- Industry Seismology and Stuff by Walter Kessinger - links to news about mostly oil-related geophysical topics (”the longest-runnig geoblog out there“)
- Sismordia by Alessa Maggi and others - seismology in the Antarctic
Hydrogeology / Hydrology
- Ordinary High Water Mark - experiences from water research
- Pools and Riffles - hdyrology of Nevada and other regions
Palaeontology
- Alberta Vertebrate Palaeontological Association-Blog - vertebrate palaeontology of Arizona
- Ask Dr. Vector by Matt Wedel - palaeontology and biology of mainly flying animals
- Bio/Rocks by Sarah Werning - vertebrate palaeontology and biology
- Dave Hone’s Archosaur Musings by Dave Hone - palaeontology of dinosaurs
- Dinochick by Rebecca Foster - palaeontology and other stuff
- Dino Frey’s Weblog by Dr. Eberhard Frey from Germany - Blog about dinosaurs (especially Pterosaurs)
- Echinoblog by Christopher L. Mah - vertebrates and collection work
- The Ethical Palaeontologist - some palaeontological articles
- Geologia online - mainly palaeontological posts (in Italian)
- The Great Dinosaur Mystery and the Big Lie by Sherry Konkus - articles about the controversial creationism and the role of dinosaurs
- Laelaps by Brian Switek - Blog about evolution
- The Loom by Carl Zimmer - Blog about life, past and future
- The Open Source Paleontologist - Blog about open source software for Geoscientists
Palaeoblog by Michael J. Ryan - diverse palaeontological topics - Panda’s Thumb - Blog about evolution and creationists
- Sauropod Vertebra Picture of the Week by Darren Naish, Matt Wedel and Mike Taylor - every week a new picture and additional articles about sauropods
- Triloblog - Blog about trilobites
- Why I hate Theropods - Blog about Mesozoic reptiles and evolution
Petrology/Mineralogy/Economic Geology - Antimonite - palaeontological and archaeological articles
- GeoCosas from Chile - Blog with focus on metallogeny and tectonics (in Spanish)
- Looking for Detachement by Silver Fox - articles about field work and exploration
- Mineraland Chile - Blog about Chilean minerals with many photographs (in Spanish)
- Rocks & Minerals - a kind of encyclopedia about rocks and minerals
Quarternary Geology
- Cryology and Co. - geology of ice
Regional and Local Geology
- Arizona Geology by Allison - diverse geo-topics about Arizona and neighbouring states
- Oakland Geology by Andrew Alden - geological outcrops in Oakland
- proreg news by Michael Hahl - articles about the geology of the German Odenwald (in German)
Sedimentology
- Active Margin by Jim Repka - sedimentology and geoscientific education
- Clastic Detritus by B. W. Romans - blog with comprehensive articles
- The Dynamic Earth - Blog with mainly sedimentological topics
- Hindered Settling by Zoltán Sylvester - comprehensive geo-articles
- In Terra Veritas - Blog of a sedimentologist about the geo-world
- Ramblings of a Geologist by Katherine Allen - Blog about the sediments of Lake Erie and climate change
- Reporting on a Revolution by Suvrat Kher - climate change, evolution and more
- Ripples in Sand - Blog by a graduate student from the Rocky Mountains
- Sedimentary Basins and Petroleum Geology by Paul Wilson - comprehensive geoscientific articles
- Stratamodel Blog by Tom Bell - Blog about the field work of the Stratamodel Inc.
- Ten Million Years of Solitude - sedimentological, Quarternary geological and climate-related topics
Structural Geology/Tectonics
- Al my faults are stress related by Kim Hannula - articles about geoscientific education and climate (besides structural geology)
- Apparent Dip - useful articles about geo- and thermochronology
Vulcanology
- ECRIS & CEVP - comprehensive articles about the European Cenozoic Rift System (ECRIS) and the Central European Volcanic Provence (CEVP) (in German)
- Eruptions by Dr. Erik W. Klemetti - Blog about active volcanos worldwide
- Magma Cum Laude - blog about volcanos and their molten and solidified products
- Volcano Summer - Blog about a research stay of a geology student at Mauna Loa (Hawaii)
- The Volcanism Blog by Dr. Ralph Harrington - Blog about worldwide volcanos, especially Chaitén, Llaima, Kilauea and Tungurahua
Miscellaneous
- Accidental Remediation - articles about environmental geology and remediation
- A Thin Section - Blog of a former economic geologist with spradic posts
- Branner Blog by the Branner Library (Standford University) - News about geo-libarary work
- Christie at the Cape - Blog about the experiences of a geological emigrant
- The Chronicles of the Angry Geologist - diverse topics, minor about geosciences
- Earth Sciences and Maps Library Blog of the University of California in Berkeley - Blog about maps
- Geo/Arch/Sci Blog by Ellery Frahms - articles about geoarchaeology
- GeoLibros by Make Stannen from Chile - normal and e-books are presented (in Spanish)
- Geology Joe - diverse topics, partly about geosciences
- Ontario-geofish by Harold Asmis - diverse topics
- Natural History Now! by the Utah Museum of Natural History - geological, geographical and biological topics from Utah, USA
- Reel Geology - Blog about geologists and geology in movies
- Rising to the Occasion - Blog about field trips and education experience
- SEG Geo-Mentoring - Blog about the mentoring-program of the Society of Exploration Geophysicists
- Slightly Diktytaxitic by Tom Hinterberger - reports about research, education and university life of a student
- Southern Exposure - Blog about geological education
- Uncommon Vistas - Blog about a travelling geologist (not really geoscientific articles)
