Google ScholarLike Google, but focused on the scholarly literature. Under Settings, go to Library Links to activate UC-eLinks.
**Pros: Full-text article searching can retrieve articles that may not come up in the other databases, so good for interdisciplinary topics. Also indexes faster than the other databases, so you may get very recent articles. Can also view citing articles and related articles, set up search alerts, etc.
**Cons: Full-text article searching that brings up thousands of articles, with very limited tools to refine search results. Through the Advanced Search, you can exclude words, do some boolean "OR" searching, and limit results to articles where search terms are found in the article titles only.