Exhibit 23.1 INDEPENDENT AUDITORS' CONSENT We consent to the incorporation by reference in Registration Statement Nos. 333-69165, 333-81593, 333-90815, 333-37252, 333-42340, and 333-47874 on Form S- 8 of InfoSpace, Inc. of our report dated March 2, 2001 (March 23, 2001, as to Note 9), appearing in the Annual Report on Form 10-K of InfoSpace, Inc. for the year ended December 31, 2000. /s/ Deloitte & Touche LLP Deloitte & Touche LLP Seattle, Washington March 30, 2001