Smart Search
The latest beta from Google:
Google Scholar, "Stand on the shoulders of giants"
Google Scholar enables you to search specifically for scholarly literature, including peer-reviewed papers, theses, books, preprints, abstracts and technical reports from all broad areas of research. Use Google Scholar to find articles from a wide variety of academic publishers, professional societies, preprint repositories and universities, as well as scholarly articles available across the web.
...is this going to make it easier or harder to plagiarize? Depends on the reader's Google savvy, I guess.