"This genre is not category SF; it is not even "genre" SF. Instead, it is a contemporary kind of writing which has its face against consensus reality. It is fantastic, surreal sometimes, speculative on occasion, but not rigorously so. It does not aim to provoke a "sense of wonder" or to systematically extrapolate in the manner of classic science fiction.
Instead, this is a kind of writing which simply makes you feel very strange; the way that living in the late twentieth century makes you feel very strange; the way that living in the late twentieth century makes you feel, if you are a person of a certain sensibility. We could call this kind of fiction Novels of a Postmodern Sensibility...for the sake of convenience and argument, we will call these books "slipstream."" - Bruce Sterling
Sterling's list isn't helpful at all - I don't think the question of 'examples of 'slipstream' books' is helpful either but, yet,.... Nonetheless, I can't help but read Sterling's lines and recall M. John Harrison, Nina Allan, Joel Lane, Aickman, Ligotti.... these porous horrors or 'strange' fictions (some often called weird fiction, which I contest as Ligotti and Lane have vastly unthinkable vistas on offer beyond that crafty misanthrope).
Perhaps talking about particular titles would be a good thing. For example, I can't help but notice Iain Bank's The Wasp Factory - which has dated like a peach in the sun and is simplistic and problematic when revisiting today. Which titles no longer make one feel strange? What contemporary titles might one add to this list?