MSN Search is falling farther behind as Jonathan Barr at TheStreet.com:
Google gained market share in Internet searches in December at the expense of rivals Yahoo! and Microsoft according to Nielsen/NetRatings.
The Mountain View, Calif.-based company had a 48.8% share of the search market, up 5.7 percentage points from a year earlier. Yahoo! had 21.4%, a decline of 0.3 percentage points. Microsoft’s MSN saw its share decline 3.1 percentage points to 10.9%.
The data further illustrate Google’s dominance in search and the problems that its rivals have in making a dent in its lead. Overall, the number of searches surged 55% to 5.07 billion. Google showed a 75% increase in search queries to 2.5 billion, Yahoo! had 1.1 billion searches, up 53%, while MSN query levels surged 20% to 553.5 million.
Note that per the Nielsen press release, this is US only.