XML 32 R25.htm IDEA: XBRL DOCUMENT v2.4.0.8
Concentrations (Tables)
 9 Months Ended
Sep. 30, 2013
Schedules of Concentration of Risk Based on Consolidated Revenue

The advertisers representing more than 10% of consolidated revenue are as follows:

 

     Nine months ended
September 30,		     Three months ended
September 30,		  
     2012     2013     2012     2013  

Advertiser A

      29 %      25 %      27 %      25 % 

Advertiser B

      *        14 %      *        13 % 

Advertiser C

      *        11 %      *        12 % 
Schedules of Concentration of Risk Based on Accounts Receivable

The outstanding receivable balance for each advertiser representing more than 10% of accounts receivable is as follows:

 

     At December 31,
2012		     At September 30,
2013		  

Advertiser A

      36 %      32 % 

Advertiser B

      11 %      17 % 

Advertiser C

      *        11 %