Starting a Blog & Choosing a Niche

Starting a blog to gain financially can be difficult, If you are starting one for fun then you will already know what niche to get into.  Choosing a niche is of upmost importance especially when trying to make money from it. I myself have found it difficult to settle with a niche on my main blog.  I have written much about seo, money making, blogging and web publishing but i find these area's to be vastly dominated and have started to branch out. I have now created a trusted download page where you can download any available film virus free.
This blog has 2100 subscribers but i find they come to my blog for different reason's and i will continue to branch out and expand.
If you have and in-depth knowledge of fishing or diving or what ever you could start a blog for fun and it could end up making you money.
What ever the niche make sure your content is origional and unique and it may go viral.