What blogging site can I start a blog and actually get viewers or subscribers?

I am trying to find a good blogging site where I can actually get viewers or readers to view my blog. I have tried blogspot and live journal with no real success. Does anyone know of any good sites where I can actually blog and get readers?

Another thing is any tips to get readers to your blogs? Should you follow a theme or how do you need to advertise or if you keep posting will they come to you?

Please no spam. Thanks