One of the problems with blogs or any kind of public posting of one's activities is the appearance of transparency that it gives.
This tends to means that the absence of blog entries can be taken to imply that people are keeping things from those who read the blogs as sources of updates on what people are up ta, when it's really most probably laziness. This can especially be a problem when filled with enthausism people blog loads starting out and then it all trails off.
So, remember take your time, start as you mean to go on and if there people haven't posted in a while don't worry that they're hiding things from you. They're just busy living!