Because there are so many excellent blogs out there I though I would drop in an occasional 6 pack of ones that stood out to me. A sampler, if you will, of all that is happening in the rpg blogosphere.
So, without further ado:
How D&D Essentials Changed 4E...forever!
http://www.neuroglyphgames.com/how-dnd-essentials-changed-4e-forever
Gaming Groups: Away From The Gaming Table...
http://flynnwd.blogspot.com/2010/10/gaming-groups-away-from-gaming-table.html
WotC's D&D Red Box Commercial Rips Off Dungeon Majesty
http://cyclopeatron.blogspot.com/2010/10/wotc-commerical-rips-off-dungeon.html
(I liked the comments section on the above post-some good points from all sides)
Freeport + Pirates of the Spanish Main
http://wastedlandsfantasy.blogspot.com/2010/10/freeport-pirates-of-spanish-main.html
Tolkiens & Dragons
http://www.lordkilgore.com/tolkiens-dragons
Tolkein and D&D
http://greyhawkgrognard.blogspot.com/2010/09/tolkein-and-d.html