I had a conversation with a friend who is a small business owner just the other day, regarding clouds.
He said, (regarding the app we were discussing) "We'll just put it in the cloud."
I replied, "Good idea. How are you going to do that?"
He didn't have an answer. Sez me, that might be an interesting niche to fill. "Cloud technology" is great, but someone still needs to know how to use it AND be able to explain to businesses how they can safely and effectively leverage it.
Sure you can do that. However you will be building a business that is in decline from day zero. All your business will be derived from the belief that Amazon, Google, Dropbox and every other cloud provider are too stupid to offer neatly packaged solutions to small businesses.
Perhaps they don't have it sorted out yet - but they will have it done in a year. This is a simple thing to do, it's just marketing - slick sheets, good choice of words, and very little of coding. MS did that with their Small Business Server, for example - bundled together what most small businesses need and sells it as a "business in a box." Amazon can do that too, and you will find it hard to compete with them. Why will a customer want your advice if they can take it, for free probably, directly from the horse's mouth? If you are at Home Depot and have a question about a pipe fitting do you hire a contractor on the spot or simply ask the nearest Home Depot worker?
Admittedly, not every business depends on unique offerings. You can open a pizza joint and be profitable, even though most pizzas are alike. But you will find very few pizza places that are valued in billions of dollars. If you want that level of valuation you have to look for businesses that offer unique services or products.
You can decide which way to go - the commodity path (pizza) or the unique path (whatever you can invent.) There is about the same amount of effort on either path; but the commodity venture has a ceiling that is hard to break. On the other hand, it requires no inventor's abilities; a tradesman's skill is all that one needs to bake pizza.