Easybib.com - Free service that lets students cite sources for their research papers.
Purdue Online Writing Lab - The Online Writing Lab (OWL) at Purdue University houses writing resources and instructional material to assist with many writing projects.
Readalikes - Find authors with similar writing styles or authors that write about a particular subject.
Sequels and Series - Find the next book in a series or sequence of a series.
Writing Style Manuals - APA/MLA style manuals and other helpful writing tools.