Here is a list of blog I follow on a regular basis (by rss syndication)
Some are very active (several post a day) some less (one post a year) but worse it 
Beautiful Pixels [RSS]
Chris Hecker’s Website – Recently Changed Articles [RSS]
Diary of a Graphics Programmer [RSS]
Gamasutra Feature Articles [RSS]
GameDev.net – Latest Articles and Columns [RSS]
Guru3d.com Latest Articles [RSS]
John Ratcliff’s Code Suppository [RSS]
Ke-Sen Huang’s Conference Paper List [RSS]
On the path with a ramblin’ man, by jollyjeffers [RSS]
PC Perspective Articles Feed [RSS]
Pete Shirley’s Graphics Blog[RSS]
realtimecollisiondetection.net – the blog [RSS]
Recherche : Evénements et manifestations [RSS]
Recherche : Tous les communiqués [RSS]
Recherche : Tous les discours [RSS]