Here are some links to interesting websites of institutes, projects, articles or news.
Evolution Experiment of Richard Lenski:
http://myxo.css.msu.edu/ecoli/index.html
Educational vídeos (peer reviewed)
https://www.jove.com/education/13/environmental-microbiology
Biology Department, University of Cadiz
PAI group webpage (Andalusian Regional Government research unit)
Seminal papers
Lynn Margullis (1967). “On the origin of mitosing cells”
Niels Peter Revsbech et al. (1983). “Microelectrode studies of the photosynthesis and O2, H2S and pH profiles of a microbial mat”.
Mc Intyre et al. (1996). “Microphytobenthos: the ecological role of the “secret garden” of unvegetated, shallow-water marine habitats. I. Distribution, abundance and primary production”.
Other interesting website
Cable bacteria (by Prof. Filip Meysman)