Every great blogging web site starts with a great idea, and you can't build a successful site that will last without one. There are many great sites aimed at today's bloggers, and competition for the attention of this growing demographic is fierce. To make your blogging web site stand out from the pack, you will need to offer something that no other site is currently offering, or you will need to do the same thing that an already popular site does but in a more impressive or valuable way. What are some ideas?
IMHO there are some many noncompetitive niches so that both ways would work however 2nd way requires more efforts.