Do you find it sad when you come across a blog full of extremely relevant info, only to find that there are no comments in sight? There appears to be no site activity except for that of the frantic article poster, thinking that the key to ‘getting their message out there’ is to post as often as possible. This isn’t to say that no-one visits. In fact the majority of your readers (90% according to this study) are lurkers i.e. read or observe but don’t contribute.