Marchex, Inc. revised earnings guidance for the fourth quarter of 2011 and provided earnings guidance for the first quarter of 2012 and fiscal year ending December 31, 2012. For the quarter, the company expects revenue will range from $38.8 million to $39.0 million for the fourth quarter of 2011 compared with $28.0 million for the same period of 2010 and compared with previous guidance of more than $40.0 million for the fourth quarter of 2011. In addition, Marchex estimates Adjusted OIBA will range from $5.3 million to $5.5 million in the fourth quarter of 2011 compared with $2.3 million for the same period of 2010 and compared with previous guidance of $5.4 million or more for the fourth quarter of 2011. This implies an Adjusted EBITDA range of $6.3 million to $6.5 million for the fourth quarter of 2011 compared with $3.4 million for the same period of 2010 and compared with previous guidance of $6.4 million or more for the fourth quarter of 2011. For the fiscal year ending December 31, 2012, the company anticipates revenue will range from $150 to $160 million and adjusted EBITDA margins will range from 13% to 15%. For the first quarter of 2012, the company anticipates lower revenue than in the fourth quarter of 2011, largely due to weakness in non-call-driven sources. As noted, Marchex does have exposure to period-to-period variability with committed budgets from call advertisers, which can translate to variability in financial performance. Marchex expects quarterly revenue to sequentially improve throughout 2012 based on anticipated call-driven revenue growth.