Medrill ( http://www.medrill.com ) is a medical search engine that indexes and ranks medical research paper abstracts based on a subtle blend of known metrics (citations count, journal and authors impact factor..)

This is still work in progress (like any search engine...), I plan to integrate medical ontologies to get better results, and I'll also integrate soon some specific filters aimed at physicians (like systematic review, clinical papers).

The stack is quite simple: Java, DropWizard, PostgreSQL, Lucene

Next step is the harder: get physicians/specialists use the search engine.

Any comment/suggestion is welcome.