EarthLink (ELNK) DEFA14A Additional proxy soliciting materials

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 14A
Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.     )
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EARTHLINK, INC.
(Name of Registrant as Specified In Its Charter)
(Name of Person(s) Filing Proxy Statement, if other than the Registrant)
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*** Exercise Your Right to Vote *** Important Notice Regarding the Availability of Proxy Materials for the Shareholder Meeting to Be Held on April 23, 2013. Meeting Information EARTHLINK, INC. Meeting Type: Annual Meeting For holders as of: March 6, 2013 Date: April 23, 2013 Time: 4:00 PM EDT Location: EarthLink's Offices 1375 Peachtree St, NE Atlanta, GA 30309 Meeting Directions: For meeting directions, please call: 404-815-0770 You are receiving this communication because you hold shares in the company named above. This is not a ballot. You cannot use this notice to vote these shares. This communication presents only an overview of the more complete proxy materials that are available to you on the Internet. You may view the proxy materials online at www.proxyvote.com or easily request a paper copy (see reverse side). We encourage you to access and review all of the important information contained in the proxy materials before voting. EARTHLINK, INC. 1375 PEACHTREE STREET, NE ATLANTA, GA 30309 M55212-P33772 See the reverse side of this notice to obtain proxy materials and voting instructions.

Before You Vote How to Access the Proxy Materials Proxy: Proxy Materials Available to VIEW or RECEIVE: 1. NOTICE AND PROXY STATEMENT 2. ANNUAL REPORT/FORM 10-K How to View Online: Have the information that is printed in the box marked by the arrow (located on the following page) and visit: www.proxyvote.com. How to Request and Receive a PAPER or E-MAIL Copy: If you want to receive a paper or e-mail copy of these documents, you must request one. There is NO charge for requesting a copy. Please choose one of the following methods to make your request: 1) BY INTERNET: www.proxyvote.com 2) BY TELEPHONE: 1-800-579-1639 3) BY E-MAIL*: sendmaterial@proxyvote.com * If requesting materials by e-mail, please send a blank e-mail with the information that is printed in the box marked by the arrow (located on the following page) in the subject line. . XXXX XXXX XXXX . XXXX XXXX XXXX Requests, instructions and other inquiries sent to this e-mail address will NOT be forwarded to your investment advisor. Please make the request as instructed above on or before April 9, 2013 to facilitate timely delivery. M55213-P33772 How To Vote Please Choose One of the Following Voting Methods Vote In Person: Many shareholder meetings have attendance requirements including, but not limited to, the possession of an attendance ticket issued by the entity holding the meeting. Please check the meeting materials for any special requirements for meeting attendance. At the meeting, you will need to request a ballot to vote these shares. Vote By Internet: To vote now by Internet, go to www.proxyvote.com. Have the information that is printed in the box marked by the arrow (located on the following page) available and follow the instructions. Vote By Mail: You can vote by mail by requesting a paper copy of the materials, which will include a proxy card. . XXXX XXXX XXXX

Voting Items The Board of Directors recommends a vote FOR items 1, 2, 3 and 4 below. 1. The election of the seven directors nominated by the Board of Directors. 1a. Susan D. Bowick 1b. Marce Fuller 1c. Rolla P. Huff 1d. David A. Koretz 1e. Garry K. McGuire 1f. Thomas E. Wheeler 1g. M. Wayne Wisehart 2. The approval of a non-binding advisory resolution approving the compensation of our named executive officers. M55214-P33772 3. The approval of an amendment to our Third Restated Certificate of Incorporation in connection with the revision of our Fourth Amended and Restated Bylaws' advance notice requirements for shareholder proposals/nominations. 4. Ratification of the appointment by the Audit Committee of the Board of Directors of Ernst & Young LLP as our independent registered public accounting firm for the year ending December 31, 2013. NOTE: The proxies are authorized to vote, in their discretion, upon such other matter or matters that may properly come before the meeting or any adjournment(s) or postponement(s) thereof.

M55215-P33772