In the future, however, Google would certainly look to "monetize" blog search, Reynar said.
Google generates most of its revenue from text advertising lined to search results.
Nielsen analyst Jon Gibs sees blogs fall into three categores today: the personal journal posted by individuals, the more journalistic opinion and reporting blogs, such as Gawker Media; and corporate blogs, which companies use as a marketing tool. The latter two comprise the beginnings of a commercial market.
"What will be interesting to see is the degree to which individuals use the new Google search tool. Are they looking for information on Johnny's blog or the more personal blogs, or on the more commercial groups," Gibs said. "If it comes from the latter players, than it really could open up the possibilities for new commercial growth."
Topics discussed in blogs are too numerous to count, stretching as far as people's imaginations. The challenge for search engines will be to carve this universe into segments and opening them up to advertisers.
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