Getting sales is what drives us to sell online everyday. We spend all day promoting our stores on Facebook, Twitter, in blogs, search engines, forums, groups, etc and we are still struggling to get sales. We try to talk to everyone we meet asking them what they do, how they do it and where they sell.
You are not alone. Many people are trying everything they can to get sales and this is why they choose multiple platforms to sell on. They want to spread their wings and be in more places than before to increase their odds of selling. There is absolutely nothing wrong with trying this. You are actually one step ahead of many other sellers who haven't tried venturing out to something new.
Evaluate - I encourage you to spend time thinking about the products you are selling right now. How long have you been selling them? Why do you sell them? Do you drop-ship? It's always good to evaluate your product line to see if there are voids you can fill. Should I add new products or eliminate old? What types of buyers would purchase my items? Successful sellers are always looking for ways to enhance their product line.
Some products sell better on some marketplaces and not so well on others. Sometimes this is due to the general buyer traffic that comes to a specific site i.e. (they go there looking for Fashion and you sell Art). Other times it is due to the general age of the marketplace. Addoway has only been around for one year while other marketplaces have been around for three years, some six, and others over a decade.
Any good thing takes time to develop and you have to be ready for that. Some sellers can jump into any site and immediately sell everything and anything in their store and we already see this on Addoway. This can be due to a variety of things: their product line (Is it popular? Is it selective?), their advertising outside of the marketplace (Do they pay for advertising? Do they blog? Do they have a fan page? etc), and maybe their buyer base is huge (they have been selling online for years and do a lot of email marketing to bring old buyers over to their new store). Remember, email marketing still plays a integral role in sales success.
Patience is a virtue. All in all, a successful seller is a patient seller who is constantly evaluating trends in the marketplace. Gone are the days of eBay millions overnight. It takes time and a lot of work to be successful. If you are doing the right things: constantly evaluating your product line, evaluating where you spend your time each day, blogging, doing social media marketing, building relationships with other sellers and marketing to your existing buyer base you will be successful. Sometimes it can happen in one day, but most often than not it's going to take a little longer than that.