What type of business
What type of business is really down to your interests. If you're interested in something then it makes sense to try and profit from it.
Our interests are reflected in the this website - your interests may be something completely different but with a little imagination and careful planning you can turn your hobby or idea into a money maker.
Choosing a area of interest to you will have two major benefits, firstly you will probably already know all about it. If you are already an expert on your chosen subject your customers will get the answers to their questions quicker and more accurate. Secondly you interest will remain constant - at the end of the day none of us really enjoy going to work doing something we probably don't really enjoy!