Copyright © 2013 Knight Sac Media. All rights reserved.http://www.siliconinvestor.com/subject.aspx?subjectid=25019 Covad Communications Group Inc., a high speed digital communication services provider, said Monday it will offer up to 7.5 million common shares in its initial sale of its stock to the public. In a filing with the Securities and Exchange Commission, Covad said the initial offering price of the sto...http://www.siliconinvestor.com/images/Logo380x132.pnghttp://www.siliconinvestor.com/subject.aspx?subjectid=2501938013210