It's definitely a slash-driven fandom, although when I've gone looking for gen, I've found decent amounts of it at spn_gen. But, whereas in most fandoms my tastes run towards long, plot-driven action/adventure (basically what you were asking for), I'm really not interested in reading it for SPN because the series itself supplies that for me, with its long plot arcs and tons of character moments. As a result, my SPN fic reading tends to lean towards little oddities, like the above -- odd or funny or unusual stories stuffed into the cracks in canon.
Along those lines, you might also check out Drunken Sam-Fu (http://eighth-horizon.livejournal.com/tag/drunken+sam-fu) and the Winchester Paper Trail (http://community.livejournal.com/hiyacunien/), both of which are "found object" stories kind of along the lines of my "Postcards to Jeannie" one.
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Along those lines, you might also check out Drunken Sam-Fu (http://eighth-horizon.livejournal.com/tag/drunken+sam-fu) and the Winchester Paper Trail (http://community.livejournal.com/hiyacunien/), both of which are "found object" stories kind of along the lines of my "Postcards to Jeannie" one.