This is how I video-blog
I use The Golden-i 3.8 headmounted wearable computer for augmented video-blogging, similar to the Google Project Glass, live streaming my headmounted video to a Google+ Hangout while I look at the live IRC chat in the headmounted display, taking live viewer questions and recommendations while I walk around video-blogging:
Camera: Panasonic GH3 for highest video quality:
Steadicam: Tiffen Steadicam Merlin2 and vest for stability, trying to reach Hollywood production quality in all my videos:
Sound: Sennheiser G3 RF microphone for highest quality wireless audio recording in all videos, allows for good sound quality even at crowded conferences.