- Hitwise’s?December search data:?”Google Steady with 72% of US Searches in December“
- comScore’s?December?search-related article: “Core US Searches Rise 3% to 12.7 Billion“
- The Nielsen Online version of search-share chart: “Share of Online Searches by Engine, December 2008“
Note: ComScore’s qSearch 2.0 figures are based on the five major search engines, including partner searches and cross-channel searches. Searches for mapping, local directory, and user-generated video sites that are not on the core domain of the five search engines are not included in the core search numbers.