Tucows diversifies revenue stream, adds customers and grows infrastructure

TORONTO, CANADA (December 14, 2005) – Tucows Inc. (AMEX:TCX, TSX:TC) today announced that it has signed a definitive agreement with Critical Path, Inc. to acquire substantially all of Critical Path’s hosted messaging assets, including the customer base, hosted messaging communications infrastructure, and other related assets, such as goodwill and a software license for Memova‚Ñ¢ Messaging, for up to US $8.0 million in cash plus the assumption of some related contractual liabilities. Tucows will maintain the hosted messaging data centers in Denver, Colorado and London, England. Tucows will also offer employment to the majority of Critical Path’s hosted messaging operations and support teams located in Toronto, Ontario.