00402nam a2200121Ia 450000500170000010000230001724500370004026000090007752001520008658300190023894200060025799900170026320260716043352.0 aStevenson, Valerie aWhen to Excite and when to Yahoo c1999 aAttempts to highlight the strengths and weaknesses of some search engines and to provide references to more detailed analyses of their performance. c3/7/00kM2LMGR cA c45788d45788