The GeoBlogosphere

A List of Many Geoblogs (Geobulletin)
A List of Some Inactive Geoblogs
Adventures of a Laura
Active Tectonics Blog
Arizona Geology e-Magazine
Arkansas Geological Survey Blog
Beauty of Tectonics Blog
Bloc de Camp (Catalàn)
Earth Science Society
Environment and Geology
Explorer Multimedia Inc. Blog
GeoCastAway (Spanish)
Geological Society of London blog
GeologicTimePics Blog - by Marli Miller
Geology Blues
Geology News (Geology.com)
GeologyPics - photos by Marli Miller
Geology for Global Development
Geology in Motion
Geology in the West Country