Digg is back again and has taken on yet another form: A website that aggregates news about artificial intelligence. "[T]he internet has more noise than ever, and the people who can sort signal from it have never been more valuable," Digg CEO Kevin Rose explained in his announcement . "Digg's job is to find that signal and bring it to you." AI is just the beginning, he said, calling it the "noisiest, fastest-moving space on the internet." He promised that more verticals are coming, but he didn't say when Digg will start aggregating news about other topics. At the moment, the website follows 1,000 people directly involved in AI research, investing and media, built from X's social graph. OpenAI's Sam Altman is at the top of the list, along with Elon Musk, OpenAI founding member Andrej Karpathy, Google DeepMind Chief Scientist Jeff Dean, AI pioneer Yann LeCun, and former chief scientist of AI at Google Cloud Fei-Fei Li, among many other personalities.…