I gave my Geologist Disasters online students an assignment on finding sources of information: Find three scientists on Twitter that are reliable sources for information about geologist hazards. They had to find a seismologist, a volcanologist, and a hydrologist. #scicomm It's an interesting look into their thought process. They were also tasked with assessing two stories about Yellowstone and a possible eminent eruption. I'll come back to that. But the people on Twitter they found were really interesting.