Found more:Don't bring me back to Life
Summary: Buffy jumps into the portal only to find out she is married to William / Spike but then stuff happens.Among the Living
Summary: It has been about thirty years since Buffy jumped off a tower to save the world. Her world and her friends have changed in her absence. Not knowing how or why she's back, Buffy still has to find a way to become one of the living again.100 Years of Solitude
Summary: Set 100 yrs after «the gift», Season five finale. This is part AU and futuristic. Spike has been alive for 100 hundred years after Buffy's death. Whistler comes to him to let him know that Buffy has been summoned to fight a knew evil, therefore she will be brought back to life and needs a «guide». When Buffy wakes she finds that the only one to cling to is the only person that has survived since the time she was alive.
Oh, and 'The Sound of Her Voice' is by Myrabeth. I forgot the author's name in my last post. Sorry.