But like me, even after all that, you've probably been left hungering (dare I say "thirsting...") for more. I've seen the forum threads all over the place asking--nay, begging for something comparable to read. I'm right there with you: I read and reread and reread and I was still left wanting more more MORE. And while nobody can be sure what the future holds (not even Alice knows for certain!), Stephenie Meyer has said that she feels Twilight is complete. She could rewrite the entire thing from Edward's perspective, and after that write several more books that delve into the stories of the other Cullens (and Hales...), and we would devour it like the rabid fans that we are...but sadly it doesn't look like any of that in the cards.
So a while back, before I really even had a clue that fanfic existed, I said to myself "Self, I can't possibly be the only one who is dying for 'Book Five'!" so I started doing random searches for more material in the hopes that maybe some aspiring, talented and obsessed-with-Twilight writer had taken it upon themselves to keep things going. I waded through a lot of crappy stories (let's just say that 99.9% of the people who really want to write something like this are not capable of pulling it off) - as well as some hotly debated writing by people intent on publishing and profiting from their fanfic - before I found something that sorta fit what I was after...
For the sake of full disclosure, I haven't read all of this material, but what I have read hits the right chord imho, so it might do the same for you. It's not M-rated, it's a work in progress, and it's not perfect (by the author's own admission it's rough in spots and not grammatically correct in others), but I like it so far and that's good enough for now.
It's called "edge of night" ["twilight continues..."] and picks up roughly where Breaking Dawn ends. I don't know anything about the author other than the fact that she is open to suggestions/feedback but asks that anyone commenting play nice. So without further adieu:
If clicking on the pic fails, here is the addy: http://twilightcontinues.blogspot.com/
Let us know what you think! Or if you have found something that is filling your need for more Twilight, share with us! We've probably all checked out the usual suspects by now, but I'm willing to bet that there are more people out there waiting to be discovered... Either that or I am going to have to lock JJ in my basement and force her to churn out subsequent chapters of Twilight fanfic, and nobody wants me to have to go there (but I will if I have to, so...). Save JJ!