Here are some blog sites which are dedicated to developments in the VoIP and conmmunications industry:

blog sites

http://www.voipnow.org

http://rogerdarlington.co.uk/commswatch/

http://andyabramson.blogs.com

http://pulverblog.pulver.com - Jeff Pulvers blog site

http://www.voipdaily.com

http://www.voip-weblog.com

http://voipandenum.blogspot.com/