What is the reason for someone to create and maintain a Weblog? Blog is a tool to put ideas, reactions and observations into public. A personal diary in public. In the process, one creates content, expresses likes and dislikes (and gives opportunities to Web2.0 apps to sell you a relevant product!), have the contentment of speaking it out (and, in some cases, being 'heard' also), and it creates a possibility for an interaction for you where someone might respond to your views. As to the frequency of blogging , I do not suppose there could be any rules as such. I think if you get one good idea per week to talk about in your blog, and you keep that practice for an year, effectively you would end up having about 50 good ideas. I would say, that makes a really productive year: 50 good ideas! Not bad... This also goes on speaking about the new Social dynamics that the technology has infused among us. On the downside, the chief one, as I see it, is that there is a real threat to a pr