Yep, but you don't have to take my word for it. Google for information on pretty much any business niche area. It has to be niche. It can't be broad like "web

Yep, but you don't have to take my word for it. Google for information on pretty much any business niche area. It has to be niche. It can't be broad like "web development" or "web design." More like web development for automotive suppliers who use Magento for large B2B orders. Doesn't have to be tech related. For example; M&A tax issues, defending age discrimination lawsuits as a small business, investment advice for American expats in Europe, increasing crop yield for soybean production, etc. etc. If you don't see blog posts from a consultant or company who sells to that niche, look up the google search traffic for the specific phrase you used, and if its significant, then you've discovered a business idea. You can bet in the next 10-20 years every single one of those niches is eventually going to be filled and the competition is only going to get worse. The best time to start is now.