My thesis (physics) intersected with some elements of philosophy in the context of quantum physics, and I googled (using this verb as an alternative to "blundered") upon some SEP entries on the subject. They were emphatically not up to date with what was cutting edge in my field, but what they were was tremendously well researched and in-depth reviews of the foundations. They clued me in to some sources that I never would have considered looking at otherwise, and those sources turned out to be some of the most fascinating reading material I came across in my research.

Sometimes it's really hard to figure out what you need to read have a good basis in a new field. If the SEP has pages on it, they're a damned fine place to start.