Optimize proper keywords for your site. Google awords is really helpful for you, you can go for that. Use banner advertisement, B2B sites, trade portals where you can upload your products with promotional texts, images etc. Social Media Optimization is also necessary for you. Do proper video marketing. Use social networking sites, press release etc.
Accepting credit cards is a must for online commerce. I recommend you use Paypal as your merchant. It's pretty easy to setup.
With Paypal, you don't have to rent or purchase any equipment because they take the orders for you and then send your revenue directly to your bank account. They take a small percentage of every order you receive.
This is MUCH more convenient than having to apply for a business license, rent out the equipment and handle all the orders yourself. PayPal makes it quick and easy.
I believe that a good marketing strategy can help boost product sales in a website. Try to make your site more creative and colorful, something that can really attracts the attention of the visitors. Also, it helps a lot if you post some testimonials of frequent clients. Testimonies that say something good about the products they bought from your site. This will surely increases customers' confidence on your site as well as credibility on your part as the one who is selling.
or you can do affiliate marketing. you can register your self with any of the affiliate networks like clickbank and can select a product you want to promote from your site. whenever any sale is made by your website of that particular product you will be paid a fixed amount of commission. you can earn huge money like this as some products offers 70 - 80 percent commission on every single sale. they are basically the online product.
As you said to sell products on website, you should advertise them on the news website.
The second, you public information in every webs and other online systems/networks.
The third, post on forums, blogs and chatting with your friends.
The way you want to public it's the method of yourself. There's no common way for all of us to apply. Before doing this, do research google for the tools which will be used.
You need to first plan out your marketing strategy. The next step is to plan an optimization strategy for your website. When you optimize your website, you will get targeted traffic, which means automatic sales. However, ensure that you have a user friendly navigable store or else if your users are left searching for different products when they visit your website, you will be at a complete loss and all your marketing efforts shall be in vain.
I think this is the perfect way to do so. You need to start with google adwords unless the product you are selling is highly competitive. Then you would need to research other organic growth opportunities. It will be definitely helpful.
Think of your website as a store front. You want to get people to go to your store, but you don't know how to do it (effectively). Most likely you don't already have a brand, or a recognized website. So you could spam forums, send out e-mails, use SEO techniques, etc...
However, the best way to really get your product to take off is to get it reviewed by a reputable source. Referrals are the most powerful form of advertising. If you can get it reviewed positively then surely you will get the revenue you desire.
Back to my store example. If it's virally spread that your store rocks, then your website will rock. This is the viral generation!
If you have a website that sells your product, i suggest you put an exit popup/message feature with your product on it, from what i've heard from other people, it has boosted thier sales significantly and has a high conversion rate(meaning a high percent of people who see the message/popup actually buy thier product)
If you are selling your product through a wordpress cms, its even easier, try using wplapdance, it's basicaly a popup that you can customize with your product on it and appears ONLY when the user tries to exit or goes to another site.