Dear Silicon Maps, Inc.

CIENA would like to thank Silicon Maps, Inc. once again for producing the “Official Silicon Valley Technology Map.” We find the quality, and cost/benefits of participating to be extremely valuable to us in Marketing. Our Senior Vice President sends them to our valued customers, as well as to each employee to reiterate that Ciena is the market-leader in intelligent optical networking systems.

Of all the other advertising options available, we find your Technology Map to be a most cost effective way to gain visibility as a High Tech leader in the Silicon Valley. We look forward to seeing our logo on the 2003 map/calendar.

Sincerely,
Project Director
CIENA Corporation