Philosophical Studies recently came out with a special issue called 8 Bridges Between Mainstream and Formal Epistemology, guest-edited by Vincent F. Hendricks. It contains contributions from H. Arlo-Costa, Johan van Benthem, Luc Bovens and Stephan Harmann, Sven Ove Hansson, Vincent F.Hendricks & John Symons, Matthias Hild, Robert Stalnaker, and Heinrich Wansing. Here is a brief quote from Hendricks' own introduction to the special issue:
Recent trends in contemporary epistemology [...] signals a great deal of interest for the intersection between mainstream and formal epistemology. It turns out that the two traditions have much in common, and may be bridged for their mutual benefit and the advancement of epistemology in general. Here are 8 ways of doing it as the invited papers in this special issue of Philosophical Studies demonstrate the fruitful interaction between informal considerations and various formal apparata in order to support, sharpen, undermine, realize, or contribute in some other pertinent way to fundamental epistemological themes.
Read more here.