Answer to Question 1
4
Rationale 1: Google is a search engine, but not a mega search engine.
Rationale 2: Lycos is a search engine, but not a mega search engine.
Rationale 3: Yahoo is a search engine, but not a mega search engine.
Rationale 4: Mega search engines combine results from several search engines. Dogpile is a mega search engine.
Answer to Question 2
2
Rationale 1: MedlinePlus is a Web site for consumer health information.
Rationale 2: The Cochrane database examines and includes the best evidence that is available in the literature about health care interventions.
Rationale 3: CINAHL is the basic CINAHL database and contains around 3,000 journals, but no full text is available.
Rationale 4: OVID is an Internet platform. Wolters Kluwer Health provides services through OVID.