Keyword search represented 40% of total display advertising market in 2004, and 41% of display advertising market in 2005.
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US ad market in 2005 |
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| 2005 | 2004 | |||
| Type of Advertising | $ | Share | $ | Share |
| Display Advertising | 2,508 | 20% | 1,829 | 19% |
| Sponsorship | 627 | 5% | 770 | 8% |
| Slotting Fees | 125 | 1% | 193 | 2% |
| Rich Media | 1,003 | 8% | 963 | 10% |
| All Display | 4,264 | 34% | 3,754 | 39% |
| Keyword Search | 5,142 | 41% | 3,850 | 40% |
| Classifieds | 2,132 | 17% | 1,733 | 18% |
| 251 | 2% | 96 | 1% | |
| Referrals | 753 | 6% | 193 | 2% |
| Total | 12,542 | 100% | 9,626 | 100% |
| Source: IAB | ||||