- Combined ad revenues totaled $8.5 billion in Q4, up from $8.2 billion in Q3 and $7.8 billion in Q4 ’07.
- The sequential growth of their combined ad revenues ground to a halt in Q3 from 12.7% sequential growth in Q4 ’07 to 0.6% in Q3.

- Google accounted for 65% of those revenues, up from 61% a year ago.
- Yahoo’s 19.1% share of revenues went up quarter-over-quarter.
- Microsoft’s $866 million in online revenues gave it a 10.2% share, up from 9.4%in Q3. AOL’s advertising revenues remained flat at $507 million, 6% share.
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