Niche (for your online business, blog and marketing) – is the specific topic, target industry or service/product that you will be promoting.
Your online identity is what people will know you and your business as. Having that identity will help customers find you and it will help you stay grounded within your industry. When you know who YOU are others will know what to come to you for and will confident in working with you.
To find out how to find your niche you can access my other page here: Finding your Niche
Finding your niche means finding your identity. Finding your identity means finding your purpose.