You can write about anything you like on your blog, its best to write about things you know about and enjoy.
Some Popular blog topics are:
- Fishing & Hunting
- Weight Loss
- Paid Surveys
- Making Money Online
- Skin Care
You should first start writing on your blog on a regular basis before you start to look to make money from it. I would recommended to write most days on your blog, but the most important thing is the content, so don’t just write because you think you should, but write when you have some interesting things to share.
How you make money from your blog depends a little bit about your blog topic. For example with a Travel Blog you could make money from a hotel affiliate program like Hotels Combined or Agoda. A fishing blog you could make money through the Amazon Associates program. A weight loss blog could make money from selling weight loss powders, a gaming blog could make money by promoting downloads for other games, a paid survey blog could make money through referring friends to online survey sites. you get the idea different niches will make money through different methods.