When it comes to online niche marketing, hanging around in the communities also let you get close to your potential customers. From there, you can narrow down and categorize the market further taking care of sub-niches. Providing good customer service is important especially for online niche marketing. Your consumer market is small and this means that they tend to be closely knitted. A complaint from a customer can ruin your reputation. Develop a good follow up plan after the sales. Solicit feedback and be ready and available to assist your customers. They will appreciate it and stay long with you. Such customers will remain profitable to you. Never undermine what word of mouth can do for your online niche marketing.