Hi, I want to start a new blog but i am confused how to start ? I mean blog with one topic like health or blog with so many topics like health, sport, gaming, cell phones review which one is better to get more traffic?? Now, i don't have that much money to host and for the domain. So i am trying to get a start with blog (blogger) with adsense ads.. Thanks in advance..
I think you should identify your niche first. It's easier for you to approach advertiser in specific topic.
If your aim is to earn money then you have to choose a high paying niche which you are familiar with and start blogging.
It depends on your traffic. If you can manage good amount traffic to your multiple blogs (assume 5 blogs) then simply you can gain increased benefits from both adsense & pagerank. But its really tough to get huge traffic to all 5 blogs everyday, if you try hard then you can manage sufficient traffic for one blog.
Do just one topic and do it right, choose a niche you can handle (something you're truly interested in is preferable), put effort into your content and promotion. If you feel you can manage several topics, make separate blogs for each. Mixed blogs normally don't do that well.