TEMPE, Ariz., Jan. 11, 2008 - Limelight Networks (Nasdaq:LLNW), a leading content delivery network (CDN) for digital media, today announced that it believes that fourth-quarter 2007 non-GAAP revenue will be in the range of $29.3 million to $30.0 million, which is at the high end of its previously issued guidance range for the period. The difference between GAAP revenue and non-GAAP revenue represents net Custom CDN Services revenue of $0.7 million which is deferred for GAAP purposes.

This press release contains forward-looking statements concerning the outlook for the Company's revenues for the fourth-quarter of 2007. Forward-looking statements are not guarantees and are subject to a number of risks and uncertainties that could cause actual results to differ materially including, but not limited to, final review of the results and amendments and preparation of quarterly financial statements, including consultation with our outside auditors. Accordingly, readers are cautioned not to place undue reliance on any forward-looking statements. The Company assumes no duty or obligation to update or revise any forward-looking statements for any reason.

Limelight Networks, Inc. (Nasdaq: LLNW) is a content delivery partner enabling the next wave of Internet business and entertainment. More than 1300 Internet, entertainment, software, and technology brands trust our robust, scalable platform to monetize their digital assets by delivering a brilliant online experience to their global audience. Our architecture bypasses the busy public Internet using a dedicated optical network that interconnects thousands of servers and delivers massive files at the speed of light -- directly to the access networks that consumers use every day. Our proven network and passion for service assures our customers that every object in their library will be instantly delivered to every user, every time.

Copyright (C)2008 Limelight Networks, Inc. All rights reserved. All product or service names are the property of their respective owners

Paul Alfieri of Limelight Networks, Inc.
+1-917-297-4241
palfieri@llnw.com