FACTA – Finding Associated Concepts with Text Analysis
From the Quick Start Guide:
FACTA is a simple text mining tool to help discover associations between biomedical concepts mentioned in MEDLINE articles. You can navigate these associations and their corresponding articles in a highly interactive manner. The system accepts an arbitrary query term and displays relevant concepts on the spot. A broad range of concepts are retrieved by the use of large-scale biomedical dictionaries containing the names of important concepts such as genes, proteins, diseases, and chemical compounds.
A very good example of an exploration tool that isn’t overly complex to use.