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| PennWell Corporation / pennNET | |
| Penton Media, Inc. | ||
| CommVerge - - - | ||
| Fiberoptic Product News | ||
| Webcom | ||
| Applied Microwave and Wireless | ||
| Microwave Journal | ||
| Penton Media, Inc. | ||
| PennWell Corporation / pennNET | ||
| Wireless Systems Design | ||
| Microwaves & RF | ||
| Wireless Design & Development | ||
| CED Communications Engineering & Design | ||
| Reed Business Information (Cahners) - - - | ||
| CMP Media | ||
| Webcom | ||
| Reed Business Information (Cahners) - - - | ||
| Reed Business Information (Cahners) - - - | ||
| Integrated Communications Design | ||
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