Fanfics that I have found interesting and have recently been updated:
Young Justice Red X 15
A Young Justice Fanfic
Summary: Robin, leader of the Teen Titans, wakes up in a world not unlike his own. Deciding to continue down the path of a hero, he takes up an old alias and joins a new team, the Titans. As Red X, he starts to make a name for himself, as well as a number of new enemies.
Promises of a Wandering Hero
Fate Stay Night Fanfic
Summary: He promised to be a Hero capable of saving everyone. But before that he made other promises he can’t remember under a different name. How will Shirou react when he finds his lost past?
A Fate Stay Night Fanfic
Summary: Sometimes, the tiniest of changes can have the greatest impact on the world. One chance encounter goes in a new direction, and the course of the Holy Grail War is irrevocably changed…