eTBLAST is a textual similarity search engine. This server can parse and summarize the results of an abstract similarity search to find appropriate journals for publication, authors with expertise in a given field, and documents similar to a submitted query.
iHOP (Information Hyperlinked over Proteins) allows researchers to explore a network of gene and protein interactions based on published scientific literature. For each gene search, iHOP reports sentences from abstracts associating it with other genes, links out to full abstracts, and reports experimental evidence for the interactions, if available. You can also select sentences to create and visualize your own gene model.
NLProt is a tool for finding protein names in natural language text. This data-mining method is a useful approach for extracting protein UniprotIDs from research articles for the construction of custom datasets and/or databases.
XplorMed is a tool that summarizes MEDLINE search results according to subjects and allows you to navigate through abstracts in an interactive fashion.