An Essay on "The Love Song of J. Alfred Prufrock" - A study of the character of J. Alfred Prufrock, showing how his fear of his real self being known results in his leading a restricted and impoverished life - http://www.literature-study-online.com/essays/eliot-prufrock.html
Prufrock and Other Observations - Several poems online. - http://www.worldwideschool.org/library/books/lit/poetry/PrufrockandOtherObservations/toc.html
Prufrock Notes - offers a brief explanation of the poem - http://www.vanderbilt.edu/AnS/english/English151W-03/prufrock.htm
I have heard the mermaids singing - information commons about "The Love Song of J. Alfred Prufrock" (1917); includes a fully-proofread and printer-friendly text-only version with bibliography, hyperlinks as well as discussion forum. - http://www.prufrock.org/poem/