LONDON - A Web site that earned an enterprising British student $1 million suffered a crippling attack by ransom-seeking hackers. Alex Tew, 21, said Wednesday that his Million Dollar Homepage was targeted after he publicized how it had helped him raise money for his university studies. Tew had sold 10,000 small squares of advertising space on the Web site for $100 each, achieving his target in four months. His initiative spawned several copycat sites. But Tew said that on Jan. 7, he received a threat from an organization calling itself "The Dark Group," demanding that he pay them $50,000 within...