Benjamin Reilly

When Miles Warren created a clone of Spider-Man to create confusion in the life of Peter Parker, Ben Reilly was born.
Being the second clone to have been created by Warren (Kaine being the first. Due to a large scar on Kaine's face, Warren couldn't use him to be the 'chosen clone'), the clone was supposed to fight the real one till someone dies. After a battle with his real self, an explosion would knock him unconscious. The Jackal would put something in him in order to emulate death. Then Peter would take his body and put it down a smokestack. When, the clone would awake, he'd would go back to "his" apartment, thinking that he was the real thing, but he'd find Peter with MJ. The clone would then come to the realization that he's the clone, and not the real thing.

After going around the country, the clone would adopt the name Ben Reilly ("Ben" from Uncle Ben, and "Reilly" is aunt May's maiden name). During all of this time, Ben would meet a brilliant scientist named Seward Trainer, a man whom he would confide everything to. Living the life of a nomad, Ben moved from town to town until he arrived in Salt Lake City and got a job with at a local university where he would meet waitress Janine. The two would fall in love but what he didn't know was that Janine was a wanted killer. After a near-death event, they would reveal their secrets to each other. During this time, the failed Spider-Man clone Kaine would stalk him in an attempt to make his life miserable, simply because he believes that Ben is the original and that he wants to destroy the life of the man whom he owes his existance to. Janine would leave Ben as she would continue to run away from the law. Over the next few years in exile, Kaine, would kill hundreds of people by displaying his version of 'justice'.
Also, Ben always kept in touch with aunt May, and probably he told her that he was an old friend of Ben or something. Five years after leaving New York, Ben would call May, he'd ask her how she was, but May was bothered once she saw the headline of the Daily Bugle newspaper (it said that Lance Bannon had died). She hung up the phone. Sensing that she was sick Ben would decide to return to NYC again.
He would later find out that May had suffered a stroke. He and Peter (in his "I AM SPIDER" days) met and they fought for a while. Next time they would meet, Peter would be "normal" again and he'd receive Ben pretty well. By that time, Ben had become a super-hero, who Bugle reporter Ken Ellis dubbed the "Scarlet Spider", which Ben hated.
After "May's" miraculous recovery, Ben would leave NY. But just before he left, Peter was arrested for murders that he didn't commit (they were commited by Kaine, who had Peter's fingerprints, since he's his clone). Ben decided to stay and help him out instead of abandoning his life in NYC. After that whole ordeal, Kaine confessed that he commited those murders which left Peter to be found innocent. Newly released Peter would take part of an experiment conducted by Seward to see who's the clone and who's the real thing. Peter would turn out to be the clone, and Ben would be the real Peter Parker.
Despite an early negative reaction by Peter, the two would become brothers. When Peter decided to retire and move to Portland, Ben was offered to become Spider-Man, but he refused and continued being the Scarlet Spider. Since he was the new hero in town, no one really knew what to think of him, so Doc Ock II would frame the Scarlet one for all these crimes, so Ben was forced to dawn the Spider-Man costume again.
He designed his own costume, and a new Spider-Man was born. And to avoid being confused by people who knew Peter, he dyed his hair blonde. Ben would then get a job at a little coffee shop called the Daily Grind.He would befriend the patrons a single mother and her son Devon, cafe-fly Buzz, rich (& possible mutant) Desiree Winthrop. Ben would date a woman by the name Jessica Carradine, who would turn out to be the daughter of the burglar who shot uncle Ben. But they had a little relationship which ended in a good way.
When Peter and MJ would return to NY, Peter and Ben's friendship would be as tight as ever. They'd spend almost all the time together and become the best of friends. Spider-Man did things on his own, until Peter's powers started to come back, unexplicably. Together, they would stop Sentinels from harming innocents during the 'Onslaught'. Later, Seward Trainer would then suddenly disappear and work for a small subsidiary of Osborn Industries called Multivex. Ben would one day find out that his former girlfriend Janine is in NYC and the two would continue their romantic ways, but Kaine would try to put a stop to this, once again, but this time Ben would use words instead of fists to send Kaine to the Vault, and also, Janine would finally send herself to jail for the sins of her past.
Right after Ben discovers that he would be the godfather of baby May, his entire life would come to screaching halt. Ben would find out that Seward was unwillingly working for a returning Osborn and Seward rigged the experiment that told everyone that Ben was the real thing. In fact Peter was the real thing and Ben was a clone. In the end, Ben would get being impaled by Osborn's Goblin glider. Ben would die and then turn to dust. At his funeral, Peter, as Spider-Man, would scatter Ben's ashes around the city in order to always 'keep an eye on it'.