I found interest in the business opportunities you’ve mentioned in your article. Most of them, Thank you. And, though, I never gave thought to most of them. However, there is inaccuracy in the “opportunities that didn’t exist 15 years ago.” I know because I was involved with them (e.g.,) eBay, online stores are commonly known as e-commerce, and affiliate marketing. Internet marketing (actually) started in the earlier 1990.s.
If your business will have employees, you will, at a minimum, need to purchase workers' compensation and unemployment insurance. You may also need other types of coverage depending on your location and industry, but most small businesses are advised to purchase general liability (GL) insurance, or a business owner's policy. GL covers property damage, bodily injury and personal injury to yourself or a third party.
The Balance Sheet is a snapshot summary of the assets, liabilities, and equity of your business at a particular point in time. For a startup, this would be on the day the business opens. Note that a new business will have no accounts receivable entries on the balance sheet. Note also that the Balance Sheet is much simpler for unincorporated businesses without employees. Income tax, pensions, medical, etc. are only applicable to incorporated businesses, as are Earnings/Retained Earnings.
Often, what happens is that we run into unscrupulous Internet Marketers (IMs) who have less-than altruistic intentions of extracting money from you rather than helping you to make it. However, this isn't something new. People have been falling for networking marketing, pyramid schemes, and affiliate marketing scams since before the start of the net.