1. - 1 - Why CPP Service? Acquire stable Search sales revenue -CPP can be an alternative plan to reduce CPCs PVs dependency risk. Various product requirement from customers -Prefer utilizing campaign based on Cost Per Period for fixed marketing budgets -Possible to target various Advertisement (SMB, Fixed budget) The best solution for Auction site -CPP Service performance was already verified on an Auction site in KR. -eBay Korea CPP revenue : (USD) 24M ~ 36M / Year -eBay Korea PVs : 100,000,000 pv/daily

2. - 2 - Comparison How Search Marketing Differs : US vs. KR YAHOO! CONFIDENTIAL Y!SM Sponsored Search Content Match Search Product (Submit) US Search Product (CPP & Submit) KR Sponsored Search Content Match Intl. YSM Infra Y! KR own system (Titan)

3. - 3 - CPP Service creates unique opportunities YAHOO! CONFIDENTIAL CPP = Cost per Period The term CPP is used instead of CPM. CPP refers to Cost per Period, since product sold by period base, not impression. OV CPC Y! KR CPP OV CPC Navers CPP Navers CPC Googles CPC Daums CPP Daums CPC Navers CPC

4. - 4 - CPP Revenue portion in Y! KR (Titan System) YAHOO! CONFIDENTIAL 2007F (USD 000)200520062007 CPC 20,58323,80722,980 CPP & Other 17,31720,39117,711 Total 37,90044,19840,691 CPP Portion in Ads type(%) 46% 43% YoY Increase(%) 17%-8% Total Y!K Rev 70,64581,28267,383 Total CPP Portion(%) 25% 26% YoY CPP revenue decreased by -21% due to Combo search PVs decreasing Revenue Portion (CPC 56%, CPP & Others 44%)

5. - 5 - - CPP Listing Dynamic ordering and Scoring YAHOO! CONFIDENTIAL Objectives : For search quality enhancement with searched advertisements result and Provide advertisers options to improve their campaign performance by Good title and description.