There are a lot of different types of websites you can create if you want to be an affiliate marketer. Some sources are going to tell you to choose type X or type Y to ensure your success, but the reality is that the web has greatly changed and variety is something that's more than acceptable in today's culture. Whether a social style site or strictly professional, anything that's of a decent quality will suffice for affiliate marketing.
You can have a website that serves as a legitimate store and still link people back to the affiliate merchant to make sales. However, if you're going to create a web store, you have to realize that it's going to be a lot harder to bring in traffic to make sales. You'll be catering to multiple markets and niches since you have multiple products. So while a store is fine, remember that it's hard work.
You can also create a store that's completely separate from your affiliate site. For example, you can have a blog act as your affiliate site and just set up a paid web store to house your products. This is great if you're already adept at affiliate marketing and already have a good bit of traffic. You can tap into different markets using the same approach and get more traffic through your blog and ultimately your store.
Having a blog is important to most affiliates. The general rule here is that you shouldn't have only a blog. You should also have a site to drive people to. The blog just shows off more of your personal side and allows you to create a larger community. Blogs are also easier to update and tweak than websites, and it's easy to embed multiple links in posts.
When you're posting content, whether it's on your website, a blog, or on third-party sites, you should strive to post product reviews that are honest and well written. What you're looking for here is feedback on top of displaying the benefits of your product. The great thing about content is that you can post it practically anywhere.
If you are going the multiple product route, you can create something like a catalog of products via a blog or a website. Warning: This is for advanced marketers only who already know how to market multiple products or who are merchants. But the premise is simple. You'll just turn your web pages into catalog pages and list your products similar to eBay or Amazon.
If you're really trying to convey the effectiveness of your product, you may want to go beyond the written word and add a video demonstration to the review. Just remember that reviews are always necessary. You definitely want to add written reviews. But in terms of a demonstration or a testimonial, this is just a review add-on that gives it further credibility.
You can actually make money in affiliate marketing by selling your writing instead of your products. Affiliates out there know the importance of product reviews, and some will even pay you if you write an informed, impartial (in appearance), positive review for their product. You can base a blog or site around this.
No matter what type of website you want to create, or which elements you want to add, the common theme here is that quality sells. So no matter what you're trying to do in affiliate marketing, make sure you focus on quality.