There is no doubt that by far the biggest source of unusual small business opportunities is the World Wide Web.
The reason for this fact is simple.
The World Wide Web by reaching to the vast worldwide market has suddenly made viable tiny small niches that would ordinarily not have been viable in any other way.
The best way to start on your journey to finding these opportunities is to start off with your interests and hobbies, bearing in mind the skills that you already possess and the invaluable experience that you have gathered over the years.
Bearing this in mind you can then visit popular discussion forums that focus on the topic you have in mind.
The trick about discussion forums is that problems and controversies surrounding various topics and subjects are usually discussed in great detail.
Now you may not be aware of this but the best business ideas emerge from solving nagging problems that people tend to have.
So this should be exactly what you should be looking for in the discussion forums as you seek to find your unusual small business opportunities ideas.
Actually it is true to say that the more unusual and unique the idea you come up with, the higher the chances of your small business venture succeeding.
Naturally the next thing that you will need to look into after you have come up with a few ideas is whether you are able to find an effective way to market so that you can be able to get enough customers to make any of the unusual small business opportunities that you are considering, viable.