Here are some for you:
1) Highschool
We Must Reinvent Love (There are sequels to this)
http://users.livejournal.com/_mournthewicked/177149.html

Brave Hearts and Rebellious Souls (based off the Movie Toy Soliders)
http://sgflutegirl.livejournal.com/249924.html

If You're Out There (Jensen is abused and deaf)
http://magicletters.livejournal.com/53445.html

4)Slavery
Only After Disater Can We Be Rescurrected (I count this as slavery)
http://chase-acow.livejournal.com/193638.html

5) Dark
Rule of Engagement (Very Dark, you have to download it to read it)
http://community.livejournal.com/spnstoryfinders/3648947.html?thread=21957043#t21957043