Related by context. Frequent words. (Click for all words.) 82 ComScore 82 comScore 74 Nielsen NetRatings 71 Comscore 67 Hitwise 67 comScore Media Metrix 65 eMarketer 61 firm eMarketer 58 JupiterResearch 58 ShopperTrak RCT Corp. 57 Coremetrics 57 Forrester Research 57 NPD Group 56 ShopperTrak 56 SpendingPulse 56 PhoCusWright 54 MasterCard Advisors 54 MasterCard Advisors SpendingPulse 54 M Metrics 54 WebSideStory 54 StatCounter 53 Quantcast 52 BIGresearch 52 Autodata 52 TNS Media 51 Kantar Media 51 Shop.org 51 RealtyTrac 50 Keynote Systems 50 CreditCards.com 49 ACNielsen 49 Interactive Advertising 49 Packaged Facts 49 market researcher NPD 49 Taylor Nelson Sofres 49 National Retail Federation 48 In-Stat/MDR 48 Edmunds.com 48 Exhibitor Relations 48 Analysys International 47 Technomic 47 Nielsen 47 Synovate 47 FareCompare.com 47 MarkMonitor 47 Outsell 47 TNS 47 AC Nielsen 47 researcher IDC 46 uniques 46 Gartner 46 iSuppli 46 ForeSee Results 46 Netcraft 46 NPD 46 e commerce 46 Exhibitor Relations Co. 46 Nielsen Media 46 Nielsen Monitor 46 Radicati Group 46 Harris Interactive 45 Internet Retailer 45 IDC 45 DataQuick Information Systems 45 IAB 45 behavioral targeting 45 Hollywood.com 45 Advertising.com 45 Click Forensics 45 Dealogic 44 GfK NOP 44 Mintel 44 kbb.com 44 Gartner Dataquest 44 Technorati 44 Orbitz.com 44 Hotels.com 44 ValueClick 44 RL Polk & 44 MarketTools 44 Nielsen SoundScan 44 DoubleClick 44 Shopzilla 43 Screen Digest 43 Autobytel 43 Bankrate 43 iCrossing 43 ScanSafe 43 TrueCar 43 TrueCar.com 43 SoundScan 43 Autodata Corp. 43 AdMob 43 Ipsos Reid 42 Equilar 42 Bankrate.com 42 Zillow.com 42 ABI Research 42 Expedia.com 42 IMS Health 42 CoStar Group