Complex sentence: He is best remembered for his self-published newsletter, "I. F. Stone's Weekly" which was ranked 16th in a poll of his fellow journalists of "The Top 100 Works of Journalism in the United States in the 20th Century".
Split into simpler sentences: He is best remembered for his self-published newsletter, "I. F. Stone's Weekly". In fact, "The Weekly" was ranked 16th in a poll of his fellow journalists of "The Top 100 Works of Journalism in the United States in the 20th Century".