As of yesterday, all of Dana White's video blogs on the UFC channel were removed:
"I made the decision not to do the blogs anymore." "I am the one that took them down" said White. "They were fun while they lasted, and thanks to everyone for the support."
According to fightersonlymagazine.co.uk:
... "The UFC is known to be working on a behind-the-scenes show with major network HBO, with a working title of ‘Outside the Octagon’."
"It is possible that it was felt there is too much crossover between the video blogs and the television show, in which case ceasing the blogs makes sense."
Let the speculation begin about what the reason is.