Rock's Backpages is an online database of music writing, sourced from music and mainstream press. The library contains over 20,000 articles, covering the early 1960s to present. Includes album and concert reviews, feature articles, and previously unpublished interviews with major rock artists.
ProQuest Research Library is a multi-disciplinary index. It covers dozens of subject areas and indexes thousands of scholarly and general titles and provides full text for a significant number of the articles included. It is an excellent starting place for research for a paper, particularly if one isn't sure where to begin one's research.