WorldCat has recently added a couple of features to make it easier and more convenient. The first is a more faceted sorting feature: now you can sort search results by relevance, author, title and date. The second is providing proper citation format in five different styles (APA, Chicago, Harvard, MLA, and Turabian) for every item (unfortunately it doesn’t have Blue Book). OCLC is definitely working on making WorldCat more user-friendly.