Blog for the fun of it and show character. It is immaterial how many write about a particular subject, it is how you write the matters.
Make your posts visually appealing. It really helps in grasping the attention of the reader and adds value to the post.
Don't just type, talk to your audience. Blogging is way big a market on internet and people will like you if you do more than just providing information. Suggest, express, appreciate, criticize and have an opinion to build a relativity to a like minded audience. Make them feel that their visit to your blog matters to you.