http://www.ahrq.gov/clinic/

It presents information regarding Evidence-based Practice (Scientific reviews, evidence reports, centers and topics, methodology); Outcomes and Effectiveness (Medical treatment findings, pharmaceutical therapy, outcomes research); Effective Health Care (Comparative clinical effectiveness, pharmaceuticals, devices, and health care services — consumer and stakeholder input); Technology Assessment (New technology reviews, risks and benefits, clinical effectiveness); Preventive Services (U.S. Preventive Services Task Force, Put Prevention into Practice screening, counseling, immunizations, chemoprevention); Clinical Practice Guidelines (Current and archived Clinical Practice Guidelines, beta blockers practice advisory, treating tobacco use and dependence); National Guideline Clearinghouse™ (Comprehensive database of evidence-based clinical practice guidelines and related documents with syntheses and comparisons)