Examples of Photoblogs
NYC Photo Blog : http://rion.nu/
Green : http://green.colorize.net/
Photoblogs.org http://photoblogs.org
Hosted Photography blogs
http://www.photoblogs.org/
Mute : http://mute.rigent.com/i
Fotologue
http://fotologue.jp
Japanese hosted photoblog service service
http://fotologue.jp/lifebeat/
Photo blogging or just blogging with photographs can be but facilitated by any one of these photosharing services.
Flickr : http://flickr.com
Bubble Share : http://www.bubbleshare.com
Zoomr : http://zooomr.com