So, you have an idea or a skill that you would like to turn into a business?
You may already have full time commitments: a job, a family - both! - so this may be your 'side hustle' or it could be your long lived-for dream to break out of the 9-5 rat-race. Whatever your situation, reason or motivation you are going to need some primary tools and services to help you get your business online.
To my mind, the basics of any online business these days are your website (your store-front or office - the place where you 'live' in the virtual world) and a social media presence (for your advertising, public relations, market research etc). Of course it isn't just about having these things, it's what you do with them that counts - read my blog, and related posts - but we all need to start somewhere.