What's growing at Yahoo and eBay, and Search Engine Market Shares

In anticipation of Yahoo's and eBay's earnings announcements this week, Nielsen//NetRatings provides the following relevant Web metrics.

 YAHOO!

 - Web traffic to the Yahoo! parent company increased six percent year over year, from a three-month average monthly unique audience of 103.5 million unique visitors in Q4 2005 to 110.1 million unique visitors in Q4 2006.

- In online advertising, the number of image-based impressions on Yahoo! grew 24 percent from Q3 2006 to Q4 2006, according to AdRelevance. Sponsored links on the Yahoo! property grew 11 percent in the same time period. 

Yahoo's Top 5 Fastest Growing Channels

+--------------------+----------+----------+---------------------+

| Channel            | Q4-05 UA | Q4-06 UA |       Q4-Q4 Traffic |

|                    |    (000) |    (000) |              Growth |

+--------------------+----------+----------+---------------------+

| Yahoo! Video       |    1,999 |    5,978 |                199% |

| Yahoo! Autos       |    1,999 |    3,326 |                 66% |

| Yahoo! Health      |    2,866 |    4,678 |                 63% |

| Yahoo! Real Estate |    1,015 |    1,643 |                 62% |

| Yahoo! Toolbar     |    3,398 |    5,118 |                 51% |

+--------------------+----------+----------+---------------------+
Source: Nielsen//NetRatings, January 2007

 EBAY

 - Web traffic to the eBay parent company increased 14 percent year over year, from a three-month average monthly unique audience of 62.0 million in Q4 2005 to 70.7 million in Q4 2006. 

- eBay brands Skype, eBay and PayPal all ranked No. 1 in their respective subject categories in December 2006 (Long Distance/Local Carriers, Classifieds/Auctions and Financial Tools).

 eBay's Fastest Growing Brands (U.S., Home and Work)

+----------------------+----------+----------+-------------------+

| eBay Brands          | Q4-05 UA | Q4-06 UA |   Q4 - Q4 Traffic |

|                      |    (000) |    (000) |            Growth |

+----------------------+----------+----------+-------------------+

| Skype*               |    1,714 |    2,793 |               63% |

| eBay                 |   55,596 |   63,440 |               14% |

| PayPal               |   18,236 |   18,946 |                4% |

| Shopping.com Network |   20,085 |   20,348 |                1% |

| Rent.com             |    1,285 |    1,292 |                1% |

+----------------------+----------+----------+-------------------+
Source: Nielsen//NetRatings, January 2007

Note: * Skype was acquired by eBay in November 2005, but this unique audience average includes October traffic.

 eBay's Fastest Growing Channels (U.S., Home and Work)

+----------------------------+----------+----------+----------------+

| Channel                    | Q4-05 UA | Q4-06 UA |        Q4 - Q4 |

|                            |    (000) |    (000) | Traffic Growth |

+----------------------------+----------+----------+----------------+

| eBay Half                  |    3,122 |    8,118 |           160% |

| eBay Business & Industrial |    5,046 |    5,816 |            15% |

| eBay Live Auctions         |    1,819 |    2,032 |            12% |

| eBay Entertainment         |   15,108 |   16,594 |            10% |

| eBay Stores                |   15,042 |   16,520 |            10% |

+----------------------------+----------+----------+----------------+
Source: Nielsen//NetRatings, January 2007

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Nielsen//NetRatings Announces December U.S. Search Share Rankings

 December 2006 data for the Top U.S. Search Providers.

 Top search providers, ranked by total searches.
Searches represent the total number of queries conducted at the provider. 

Table 1: Top 10 Search Providers for December 2006, Ranked by Searches (U.S.)

+-------------------------+-----------+------------+--------------+

| Provider                |  Searches | YOY Growth |     Share of |

|                         |     (000) |            |     Searches |

+-------------------------+-----------+------------+--------------+

| Google Search           | 3,035,617 |      22.6% |        50.8% |

| Yahoo! Search           | 1,412,904 |      30.1% |        23.6% |

| MSN/Windows Live Search |   499,946 |      -9.7% |         8.4% |

| AOL Search              |   362,140 |       7.8% |         6.1% |

| My Way Search           |   141,527 |       4.7% |         2.4% |

| Ask.com Search          |   128,452 |      17.2% |         2.1% |

| EarthLink Search        |    31,930 |      17.6% |         0.5% |

| Dogpile.com Search      |    30,487 |       2.1% |         0.5% |

| Comcast Search          |    26,931 |        N/A |         0.5% |

| NexTag Search           |    26,835 |     123.2% |         0.4% |

+-------------------------+-----------+------------+--------------+
Source: Nielsen//NetRatings MegaView Search, January 2007

 Example:  An estimated 3.0 billion search queries were conducted at Google Search, representing 51 percent of all search queries conducted during the given time period.
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