If you haven't seen it yet, there is a cool site called Polanoid that is dedicated to all things Polaroid and is amassing a database of old polaroids posted by fans of instant photography worldwide.
They have a ton of different images to browse, from more traditional portraits or landscapes or tourist souvenir shots, to more artistic images like this one titled "The Same Deep Water As You".
It is definitely inspiring, and motivated me to dig into some old albums and unearth a few shots from back in my own Polaroid-taking days.
Here is a street shot of the old Cicero Lounge in what was purportedly a mobbed-up neighborhood on Chicago's western fringe, taken sometime back in the early 1980's. The picture cannot possibly convey how cold it was standing outside on that blustery winter day!
And here is a photo I call "Too Fast" which is a typical portrait of my oldest son, who hated having his picture taken and was lightening quick, so most of my attempts ended up feeling like deliberately arty compositions like this one.