MicrobeWiki

For researching topics and also for some good old fashioned random browsing I recommend MicrobeWiki. For example there was a question about whether the sulfur oxidizing chemoautotrophs I mentioned at the base of hydrothermal food webs were bacteria or achaea - turns out they are both and there is a really nice article at the MicrobeWiki site about Chemotrophy Along Seafloor Hydrothermal Vents.