Harry/Severus non-slash fics
Severitus
Blood Magic by gatewaygirl Schnoogle
Summary: Blood magic was supposed to keep Harry safe, but his relatives are expendable. Blood magic was supposed to keep Harry looking like his adoptive father, but it's wearing off. Blood is a bond, but so is the memory of hate -- or love.
Forlorn Hope by Elssha (tragedy)
Summary: “I was lied to about James Potter; a liar, a cheater, a thief. I was lied to about Lily Potter; her family, her past. Worst of all I was lied to about Harry Potter, for no such boy existed.”-Horris.
Story has a WIP sequel here: Forlorn Dream.
Mine by Gillian Middleton
Against his better judgement Severus Snape let a part of himself be used in a spell six years earlier. Now the consequences of his actions cannot be avoided any longer and Snape finds himself the father of a five year old boy-Harry Potter!
Story has sequels on ff.net: Snape's Vocation, The Owl and the Puppydog , & The Absence of Unhappy
Those Green Eyes by Misha (a short story)
Summary: When Harry comes to Hogwarts, Severus thinks back to another pair of green eyes and a secret that must never be told.
Unlocking Harry Potter by sarini (yahoo!group Here )
Summary: PostOoTP, PreHBP. Severus has been having dreams, dreams so real they feel like memories. What is his mind telling him? Severitus with a twist. SLASH HPCW
Story has sequels here: Finding the Key and Closing the Door
Not Another Snape is Harry's Father Story by Ariana Deralte
(Parody)
Apprentice
Apprentice by animealam
Voldemort's victims are disappearing, the wards at Privet Drive are weakening with no explanation and Snape is found out a spy, saved only by the same thing that keeps making the prisioners disappear, and no one knows why. WIP
Dark Chocolate by Dianann
Snape takes Harry on as a seventh year apprentice...but it isn't what it seems. HP/SS
And the sequel:
White Chocolate Harry’s been missing for six years. Where has he been? What mess did he leave behind, and has no choice but to return to?
Adoption
A Year Like None Other by Aspeninthesunlight
In Harry's 6th year, a letter from Surrey sends him down a path he'd never have walked on his own. WIP
Mentor
Harry Potter and the Phoenix's Flight by The Velvet Ghost (and Here on ff.net)
Harry Potter has many discoveries to make in his sixth year - some good, some bad. As his view of the world changes, he finds himself making unlikely allies in unexpected places.
Story has sequels on ff.net: Harry Potter and the Ankh of Khepri and The Night I Met You
Near As Your Next Breath by Sentimental Star
The summer before Harry's sixth year at Hogwarts: things that had once been hidden are found, and things he had never believed possible occur. And to think, all of this because of a simple apology he never expected a response to...