| University of Southern California |
7,750 |
| CBS Broadcasting Inc. |
3,133 |
| British Broadcasting Corporation |
2,217 |
| Wipro Technologies |
1,401 |
| Charter Communications, Inc. |
970 |
| Nielsen Company (US), L.L.C. (The) d/b/a A. C. Nielsen Company, L.L.C. |
875 |
| Starcom MediaVest Group |
733 |
| Harte-Hanks, Inc. |
717 |
| Idearc Media LLC |
714 |
| Ogilvy |
641 |
| Miami Herald |
637 |
| McCann WorldGroup |
628 |
| Direct Alliance Corp |
619 |
| Edelman |
596 |
| DraftFCB |
561 |
| Community Newspaper Holdings, Inc. |
552 |
| Grey Group Inc. |
542 |
| Euro RSCG Worldwide |
537 |
| Times Publishing |
532 |
| Fleishman-Hillard Inc |
506 |
| OMD Worldwide |
492 |
| Saatchi & Saatchi Advertising |
490 |
| TNS - Global |
474 |
| Weber Shandwick |
448 |
| Tampa Tribune (The) |
441 |
| Cox Target Media, Inc. (CTM), |
428 |
| DDB Worldwide Communications Group Inc. |
422 |
| Interpublic Group of Companies Inc. |
403 |
| Digitas Inc. |
402 |
| The Globe and Mail |
393 |
| Universal McCann |
383 |
| Yellow Book USA, Inc. |
375 |
| Advanstar Communications |
373 |
| Forrester Research, Inc. |
372 |
| Young & Rubicam |
364 |
| Avenue A Razorfish |
361 |
| CNN News Group |
351 |
| JWT Inside |
350 |
| The Dispatch Printing Company |
347 |
| SourceMedia, Inc. |
343 |
| The Oregonian |
342 |
| Mediaedge:cia |
338 |
| Arnold Worldwide |
325 |
| New York Post |
323 |
| Acosta, Inc. |
321 |
| Toll Brothers, Inc. |
317 |
| Hill, Holliday, Connors, Cosmopulos Inc. |
315 |
| Vertis Inc. |
314 |
| Leo Burnett Worldwide, Inc. |
307 |
| TMP Worldwide, Inc. |
306 |
| Synovate, Inc. |
299 |
| Lamar Advertising Company |
296 |
| Ogilvy Public Relations Worldwide |
294 |
| ADVO, Inc. |
293 |
| Burson-Marsteller |
280 |
| Scripps Networks Interactive |
277 |
| The Weather Channel Companies |
276 |
| Rainbow Media Holdings LLC |
275 |
| PROforma Solution Ventures |
274 |
| Valassis Communications, Inc. |
270 |
| ePrize, LLC |
268 |
| Canoe.ca |
268 |
| CBS Outdoor |
267 |
| Mindshare |
264 |
| Austin American Statesman |
263 |
| Team International Group |
254 |
| GES |
252 |
| OneSource Information Services, Inc. |
252 |
| ARC Worldwide |
251 |
| The NPD Group, Inc. |
249 |
| Waggener Edstrom Inc. |
249 |
| Ketchum |
249 |
| Schawk, Inc. |
248 |
| Hil & Knowlton Inc. |
248 |
| Doner |
243 |
| Arbitron Inc. |
243 |
| GSD&M's Idea City |
241 |
| Information Resources, Inc. |
233 |
| NeuStar, Inc. |
233 |
| BBDO Detroit |
233 |
| Wunderman |
228 |
| Questex Media Group |
222 |
| Epsilon Data Management, LLC. |
220 |
| Canon Communications LLC |
213 |
| Weiser, LLP. |
212 |
| Rainmaker Systems, Inc. |
211 |
| BBDO Worldwide |
211 |
| Merkle Inc. |
210 |
| Mullen Advertising Inc. |
209 |
| Golin/Harris International |
208 |
| Zones, Inc. |
206 |
| GFK Custom Research North America |
205 |
| Common Health |
205 |
| IMG Worldwide, Inc. |
204 |
| Millward Brown Group |
201 |
| George Patterson Y |
201 |
| Catalina Marketing Corporation |
199 |
| Initiative Media Worldwide |
196 |
| R. H. Donnelley Corporation |
196 |
| Campbell-Ewald Company |
184 |
| Journal News (The) |
184 |
| Ascend Media |
183 |
| Sutherland Global Services, Inc. |
182 |
| Affinion Group |
181 |
| The Richards Group, Inc. |
180 |
| R. L. Polk & Co. |
179 |
| Landor Associates |
178 |
| DoubleClick Inc. |
177 |
| Transcontinental Direct |
175 |
| Porter Novelli |
172 |
| Deutsch, Inc. |
172 |
| Active International |
172 |
| Jack Morton Worldwide |
170 |
| The Martin Agency, Inc. |
170 |
| Direct Media / Millard |
168 |
| Media Planning Group NA |
166 |
| TBA Global |
163 |
| comScore, Inc. |
163 |
| Datamonitor |
162 |
| E! Entertainment Television, Inc. (A Comcast Company) |
161 |
| Cramer-Krasselt |
161 |
| National Jewish Medical Center |
161 |
| APCO Worldwide Inc. |
157 |
| Horizon Media, Inc. |
155 |
| Manning, Selvage & Lee |
155 |
| Octagon Worldwide Inc. |
153 |
| ZenithOptimedia |
152 |
| LinkShare Corporation |
152 |
| Market Strategies International |
152 |
| Goodby Silverstein & Partners |
148 |
| Government Technology |
148 |
| Eloqua Corporation |
147 |
| United Online, Inc. |
146 |
| Eric Mower and Associates |
146 |
| FD |
145 |
| Mark Deitch & Associates Inc |
145 |
| Aspen Marketing Services |
144 |
| Nielsen Media Research, Inc. |
144 |
| Unica Corporation |
139 |
| Corbis Corporation |
139 |
| Business Wire |
137 |
| MediaWhiz Holdings, LLC |
135 |
| Pegasus Solutions, Inc. |
135 |
| Tracy Locke Partnership |
135 |
| Ipsos ASI, Inc. |
135 |
| MWW Group |
133 |
| Nielsen Business Media, Inc. |
133 |
| DST Output |
132 |
| MORPACE International, Inc. |
131 |
| Optimedia International |
131 |
| Winston-Salem Journal |
131 |
| Moroch Partners |
130 |
| RGA Media Group, Inc. |
129 |
| TM Advertising |
129 |
| Aprimo, Incorporated |
128 |
| PHD USA - Detroit |
127 |
| Brunner, Inc |
126 |
| VML, Inc. |
126 |
| Claritas Inc. |
125 |
| George P. Johnson Company |
125 |
| Advertising Specialty Institute, Inc. |
120 |
| Saatchi |
119 |
| Catalyst Creative Partnership |
119 |
| Just Marketing Inc. |
119 |
| Cision US, Inc. |
119 |
| National Cable Communications LLC |
118 |
| National CineMedia, Inc. |
117 |
| The Cobalt Group, Inc. |
117 |
| MediaCom Interaction |
115 |
| Advertising.com, Inc. |
115 |
| BNP Media, Inc. |
115 |
| Re/Max Premier Iv |
114 |
| McMurry, Inc. |
113 |
| Fallon Worldwide |
113 |
| Vistaprint |
112 |
| R&R Partners |
112 |
| AbelsonTaylor Inc |
111 |
| Carmichael Lynch |
111 |
| kirshenbaum bond senecal partners, Inc. |
110 |
| Shutterfly, Inc. |
110 |
| Momentum Worldwide |
110 |
| Astral Media Outdoor |
110 |
| Omnicom Group Inc. |
109 |
| Rapp Collins New York |
109 |
| Schwartz Communications, Inc. |
109 |
| Javelin Direct |
107 |
| MarketTools, Inc. |
106 |
| Northwest Florida Daily News |
106 |
| Richmond Events Inc. |
106 |
| Mediacom |
106 |
| Landis Gyr Inc |
105 |
| Opinion Research Corporation |
105 |
| Reed Exhibitions |
104 |
| Katz Media Group, Inc. |
104 |
| Clear Channel Outdoor, Inc |
103 |
| Ruder Finn |
103 |
| Reed Exhibitions - UK |
103 |
| St Patrick High School |
102 |
| Crispin Porter Bogusky |
101 |
| The NBC Tower |
101 |
