The big one is, obviously enough, Google. Google organic traffic is going to be the central pillar of your free traffic, and your SEO efforts are going to be aimed squarely at working better with Google. However, there are plenty of good reasons to diversify, to move away from total reliance on Google.
The big other search engines people recommend is, of course, Bing. Bing and Yahoo have something of an alliance, with Yahoo taking their data primarily from the Bing index, so appealing to either one is the same as appealing to both.
There are also other search engines. Ask, Dogpile, IxQuick, and so forth; these are all minor.
Social media is another huge traffic site. I generally recommend that a site only have a presence on 2-3 social networks, at least while they’re small. It’s a lot of work to maintain, engage, and update a social network profile, and keep its messaging consistent with your branding.
Facebook is the big one, with over a billion users and an extensive selection of tools you can use to reach them. It’s also the one every business should be using.
Twitter is second place as far as social networks go, and it’s primarily useful for news, time-sensitive updates, contests, and following trends in world culture. It also has a special role as an excellent location for customer service.
Instagram is huge, and their merger with Facebook gives you access to many of the same marketing tools. However, while it’s great for engagement, it only works if you have a distinct visual brand or a way to capitalize on visual exposure.
Whether you’re running a business website, an e-commerce website, a media website or another type of website, the chances are that the ultimate ambition is for that website to attract large levels of traffic.
The good news is that it has never been easier to dress your website for success. With the continuing development of quality traffic tool like Babylon, you can easily create an infrastructure that grows with your website, either over a sustained period or on a day-to-day basis.