After waking in Cauldron Lake Lodge, in the room opposite (Emerson's room), on a table is an Xbox 360 with the game Night Springs. In the remastered editions of the game, the Xbox 360 has been replaced with a generic fictional console.
After scanning the Microsoft Tag in Episode 4: The Truth on the second floor of the clinic, one is given Dr. Emil Hartman's phone number: 1-857-239-7601. This is an actual number, and if called, Hartman will explain his clinic's purpose. It also sounds like a Taken is echoing his words. As of August 2011, this number no longer appears to be valid.
Emerson, a crazy video game developer, makes a reference to Max Payne and the "Bullet Time" ability.
Shortly after passing the windmill on the way to the farm but just before the stage, if one goes left past the windmill to where the hidden chest is located but continues further back, behind the small barn, three graves can be found, represented by crosses. Approaching these graves triggers a unique encounter where the Dark Presence raises three skeletons as objects that are flung at Wake.
After entering Bright Falls Light & Power, Cynthia Weaver will lead Wake into a small room containing a bed and table. A book titled How to catch a Dopefish can be seen on the table with a picture of Dopefish against a blue background on the front cover.