C-Day - Managing the Transition to Widescreen Commercials (UK)
C-SPAN (US)
c4 (US)
CAA (British Columbia)
CAA (Canada)
CAA (Niagara)
CAB - Cable Television Advertising Bureau (US)
CAB-ACR - Canadian Association of Broadcasters (Canada)
Cabana (Germany)
Cabinet Office (UK)
Cable & Wireless plc (UK)
Cable Communications Association (UK)
Cable London (UK)
Cable TV Advertising (US)
Cablenews (UK)
Cabmedia (UK)
Cabvert (UK)
CACI (UK)
Cadbury (UK)
Cadbury Schweppes (UK)
Cadillac (US/Global)
Cahners Manufacturing Marketplace (US)
Cahners Publishing Company (US)
California State Automobile Association (US)
Call Centre Focus (UK)
Calle & Company (US)
Callnet (UK)
Callserve (UK)
CAM Systems (US)
Cambridge News (UK)
Camel Trophy (US)
Camelot Music (US)
Campaign Brief (Australia)
CampaignLive (UK)
Campbell Soup Company (US)
Campus Computing Project (US)
Campus Garbey (US)
Campus Travel (UK)
CampusKrant (Belgium)
CampusParty (US)
CAMRO - Canadian Association of Marketing Research Organizations (Canada)
Canada Life (Canada)
Canada Yellow Pages (Canada)
Canadaspace (Canada)
Canadian Airlines (Canada)
Canal Satelite Digital (Spain)
Canal+ (France)
Canal+ (France)
Canal+ (Spain)
Canal+ (Sweden)
Canale 5 (Italy)
Canalpublicidad (Spain)
CanalSatellite (France)
Candy Direct (US)
Canesten (UK)
Cannon Hotel (Gibralter)
Canon (Global)
CAP - Committee of Advertising Practice (UK)
Cap Gemini Ernst & Young (UK/Global)
Cap Gemini Ernst & Young (US)
Cape Plates (UK)
Capital FM (UK)
Capital Gold (UK)
Capital Radio plc (UK)
Capitol (France)
Capri-Sun/Sonne (UK)
Capsule (US)
Captain Morgan (US)
Captive View (UK)
Car and Driver (US)
Car Hire Direct (UK)
Car Importing From Europe (UK)
Car Insurance Advice (UK)
Car World (UK)
Car-Prices (UK)
Carat (UK/Global)
Carat Interactive (UK)
Carbusters (UK)
CarData (UK)
CarDeal (UK)
Cardonline (Canada)
CareerBuilder (US)
CareerCast (US)
Careerjet (UK/GLobal)
CareerLink (UK)
CareerSite (US)
Caretas (Peru)
CARF - Canadian Advertising Research Foundation (Canada)
Carglass (Belgium/Global)
Carinsurances.co.uk (UK)
Carl Tooney Media (UK)
Carland (UK)
Carling (UK)
Carlsberg (Denmark)
Carlson Companies Inc. (US)
Carlton (UK)
Carlton Cinema (UK)
Carlton Communications plc (UK)
Carlton Media Sales (UK)
Carlton Screen Advertising (UK)
CARMA (US/Global)
CarNet (UK)
CAROL - Company Annual Reports Online (UK)
Carphone Warehouse (UK)
Carpoint (US)
CarPoint from Microsoft (US)
Carpricecheck (UK)
CarQuote Insurance (UK)
Carrick James Market Research (UK)
Carroll Media Services (US)
Cars (US)
Carsdirect (US)
CarShop (UK)
CarSmart (US)
Carsource (UK)
CarSurfer (UK)
CART - Championship Auto Racing Teams (US)
Cartoon Network (UK)
Cartoon Network (US)
Cartoon Scape (UK)
CartoonStock (UK)
Carzone (Ireland)
Casio (UK)
Casio G-Shock (UK)
CASRO - Council of American Survey Research Organizations (US)
Catalina Marketing (US)
Catalink (UK)
Catalog City (US)
Catalog Mart (US)
Catalog Shopper (US)
CatalogLink Free Catalogs (US)
CatalogSite (US)
Caterer (UK)
Caterpiller, Inc. (US)
Cathay Pacific - Hong Kong (Hong Kong)
Cathay Pacific - Japan (Japan)
Cathay Pacific - USA (US)
Cathay Pacific - Worldwide (Hong Kong)
Cazenove (UK)
CBC (Canada)
CBI - Confederation of British Industry (UK)
CBS (Canada)
CBS (US)
CBS Outdoor (International)
CBS Outdoor (UK)
CBS Outdoor (US)
CCA - Call Centre Association (UK)
CCRG - Credit Card Research Group (UK)
ccWAP (US)
CD Paradise (UK)
CD World (US)
CDnow (US)
CDP (UK)
CDuctive (US)
Celebrations (UK)
Celebrity Agents (UK)
Celebrity Group (UK)
Celebrity Source (UK)
Cellnet Cellular (US)
Celltick (Israel)
CensusScope (US)
Centaur Communications (UK)
Center on Alcohol Marketing and Youth (US)
Center Parcs (UK)
Central Ad (US)
Central National Bank (US)
Central Trains (UK)
Centrica (UK)
Centro Atlântico (Portugal)
Cerberus Digital Jukebox (UK)
Chalets Direct (UK)
Challenge TV (UK)
Chancellors (UK)
Chanel (France)
ChangeDetect (US)
Chanimal (US)
Channel 103FM Jersey (UK)
Channel 11 - Restaurant News Network (UK)
Channel 4 (UK)
Channel 4 Marketing (UK)
Channel 5 (UK)
Channel Cyberia (UK)
Channel Health (UK)
Channel One Internet Marketing (Ireland)
ChannelSeven (US)
Charcol (UK)
Charity Gifts (UK)
Charles Schwab (US)
Charles Stanley (UK)
Charles Tyrwhitt (UK)
Charlton (UK)
Charmed Technology (US)
Chase (US)
Chat-up (UK)
Chateau Online (UK)
Cheap Flights (UK)
Cheap Holidays 123 (UK)
Cheap Online Flights (UK)
CheapFlights International (Ireland)
Checkaprice (UK)
CheckCost (UK)
Cheestrings (UK)
Chef Boy (US)
Chelsea FC (UK)
Cheltenham & Gloucester (UK)
Chemistore (UK)
Chevrolet (US/Global)
Chevron (US)
Chicago Tribune (US)
Children's Writing Resource Center (US)
ChildWise (UK)
Chinwag (UK)
Chiquita (US)
Choice Hotels (US)
Christian Science Monitor (US)
Chrysler (US/Global)
CHSR HealthyLife.Net (US)
Chubb (US)
Chugai (Japan)
Church of the Customer (US)
Churchill (UK)
CIA World FactBook (US)
ciAd - Center for Interactive Advertising (US)
Cieslok Media (Canada)
Cigar Aficionado (US)
CIM - Chartered Institute of Marketing (UK)
Cine Spain (Spain)
Cinema Media (UK)
CinemaNow (US)
Cineworld (UK)
CIO.com (US)
CIPFA - Chartered Institute of Public Finance and Accountancy (UK)
CIPS - Chartered Institute of Purchasing & Supply (UK)
Circuit City (US)
CIS (UK)
Cisco (US)
CIT Publications (UK)
Citi-Mobile (US)
Citibank (US)
Citroen (France/Global)
CITV (UK)
City TV (Ireland)
CityHotDesk (UK)
CityJobs (UK)
CitySearch (US)
CityVision (Russia)
CKW Restaurants Inc. (US)
Clairol (US)
Clairol Herbal Essences (US)
Clara.net (UK)
ClariNet (US)
Claritas (Global)
Classic FM (UK)
Classic Gold 828 (UK)
Classified Links Directory (US)
Classifieds2000 (US)
Clear Channel (UK)
Clear Channel (US)
Clear Channel International (UK)
Clearasil (US)
Click Mango (UK)
ClickaDeal (US)
Clickey (US)
Clickmusic (UK)
ClickTheButton (US)
Clickx (Belgium)
Clinique (US)
Clorox (US)
Clothestime, Inc. (US)
Club 18-30 (UK)
Club Med (France)
Club-Internet (France)
Cluttons (UK)
Clyde Taxi Advertising (UK)
CMA - Canadian Marketing Association (Canada)
CMA - Chocolate Manufacturers Association (US)
CMA - Confectionery Manufacturers of Australasia (Australia)
CMC Group plc (UK)
CMG Information Services (US)
CML - Council of Mortgage Lenders (UK)
CMM - Celebrity Model Management (UK)
CMO.com
CMP (US)
CMP Publications - Techweb (US)
CMR (US)
CMR - Competitive Media Reporting (US)
CMRA - Capital Market Risk Advisors (US)
CN Soho Live (UK)
CNA - Canadian Newspaper Association (Canada)
CNET (US)
CNET News.com (US)
CNN (US)
CNN Money (US)
CNN/SI (US)
Co-Operative Bank (UK)
Co-Operative Bank - Smile (UK)
Coast Software (US)
Coats Viyella (UK)
Coca Cola (US/Global)
Coca Cola Enterprises (US)
Coca Cola Retailing Research Group (UK)
Cogent (US)
COI (UK)
Coldwell Banker - real estate (US)
Coleago Consulting (UK)
Colgate-Palmolive Company (US)
College Games (UK)
Colmar Brunton (Australia)
Color Chart (US)
Color Landform Atlas of the United States (US)
COLT Telecom (UK)
COLT Telecom (UK)
Columbia Journalism Review (US)
Columbia Sportswear (US)
COMAIR, Inc. (US)
COMB - Canadian Outdoor Measurement Bureau (Canada)
Comcar (UK)
Comcast Corp. (US)
COMDEX (US)
Comedy Central (US)
Comet (UK)
Comet (US)
comm-motion (UK)
CommerceNet (US)
Commercial Media Sales (US)
Commission Junction (US)
Comms Air (UK)
Communication Arts (US)
Companies House (UK)
CompaniesOnline (US)
Company (UK)
Compare Your Clicks (US)
CompareNet (US)
Comparos (Australia)
Competia (Canada)
Competitive Intelligence Resource Index (US)
Competitive Media Reporting (US)
Competitrack (US)
Complete-Skier (UK)
CompUSA (US)
CompuServe (US)
Computer Associates (US)
Computer City (US)
Computer News Daily (US)
Computer Shopper (UK)
Computer Weekly (UK)
Computer World (US)
Computer-Mediated Communication Magazine (US)
ComputerMagazines (Belgium/Europe)
Comquest Research (Canada)
comScore (US)
ConAgra Foods (US)
Concero (US)
Concorde Hotels (France)
Concurrent (US)
Conde Nast (UK)
Conde Nast Traveler (US)
Conde Nast Traveller (UK)
Confetti (UK)
Connecti (UK)
Connection Software (UK)
Connexus (UK)
Conservative Party (UK)
Consignia (UK)
Consolidators on the Web (Turkey)
ConSors (Germany)
Consumer Analysis Group (UK)
Consumer Futures (UK)
Consumer Reports (US)
Consumer Reviews (UK)
ConsumerREVIEW (US)
ConsumerSearch (US)
Context Magazine (US)
Continental AG (Germany)
Continental Airlines (US)
Continental Research (UK)
Converse Chuck Taylors (US)
Conversion Model (South Africa/Global)
Converso (UK)
Cool Jules - Head & Shoulders (UK)
Cool Tool (US)
Coolsavings.com (US)
Coolshopping (US)
CoolTick - stock ticker (US)
Coors (US)
Copenhagen Institute for Future Studies (Denmark)
Copenhagen Post (Denmark)
Corbis (US)
Corbis Professional (US)
Cordiant (UK)
Corel (US)
COREMedia Systems (US)
Corinthian IFA (UK)
Cornhill (UK)
Coronation Street (UK)
Corpbanca (Chile)
Corporate Financials Online (US)
Corporate Information (US/Global)
CorpTech (US)
Corriere della Sera (Italy)
CosmicCupid (UK)
Cosmopolitan (UK)
Cosmopolitan (US)
Cospirit AMT Research (France/Europe)
Cotton Oxford (UK)
Country Living (UK)
County Homesearch (UK)
Coupons.com (US)
Courvoisier (US)
Coventry City FC (UK)
CoverGirl - Procter & Gamble (US)
Covisint (US)
Cox Communications (US)
CPA (UK)
Cravan (US)
Cray (US)
Crayola (US)
CRCA - Commercial Radio Companies Association (UK)
Creative (US)
Creative Club (UK)
Creative Quotations (US)
creativebrief (UK)
Creda (UK)
Credit Card Expert (UK)
Credit Card Info (UK)
Credit Local de France (France)
Credit Lyonnais (France)
Credit Suisse (Switzerland)
Creditcards.co.uk (UK)
Creditnet (US)
Crest (US)
CricInfo (UK)
CricInfo365 (UK)
Crisco (US)
CRM
CRM Community (US)
CRM Forum (UK)
CRM Guru (US)
CRM Project (US)
CRM Today (UK)
Crocus (UK)
Cross-Tab (India)
CRQ CueCat (US)
Crunch (UK)
Crutchfield (US)
Crystal Palace FC (UK)
CSL/SLK - Schweizerische Lauterkeitskommission (Switzerland)
CTAM - Cable & Telecommunications Association for Marketing (US)
CUC International (US)
Culture-buzz (Luxembourg/Global)
Cunard (UK)
Cunning Stunts (UK)
Cuprinol (US)
Currency Converter (Canada)
Cutty Sark (UK)
CVS/pharmacy (US)
CW360 (UK)
CWJobs (UK)
Cyber Air Broker (US)
Cyber Sentinel (US)
Cyber-Journal of Sport Marketing (US)
Cyber-robotics - Zeus internet marketing robot (US)
CyberAtlas (US)
CyberCom (New Zealand)
Cybereps (US)
Cybergrrl (US)
CyberHomes (US)
Cybermercato (Italy)
CyberPatrol (US)
Cybershop (US)
Cybersitter (US)
CyberSlice (US)
CyberSpeaker (US)
Cybuy (UK)
Cycosmos (Germany)
Cygnet (UK)
Cylo (US)
Cyndi's List (UK)
Cyprus Automobile Association (Cyprus)
Czech Marketing & Media (Czech Rep.)
