One of the things that can slow-bleed the traffic from your site is the quality (or lack thereof) of the content you publish on your site. Previous Google updates like Panda have already been released specifically to deal with the issue of low-quality content on websites. Long story short: Panda intended to stop sites with bad content from appearing in the search results.
This section is particularly helpful when looking at organic results from search engines, since it will let you know which search queries resulted in engaged traffic. Below is another example from a site that focuses on electronic components. Overall, the Google organic source was well behind the site average, but some specific search queries were actually performing better than average.
I am actually using a free service called Cloud:flood created by Glen of the ViperChill. I had great success with it, making a file available for download (I shared a list of 140 blogs worth following). It has two options, a person can RT the download that will take new people to a post where the download is (or what ever landing page you want them to come to) or they can share it on Facebook instead of tweeting it.
Encourage incoming links. Google prioritises sites that have a lot of incoming links, especially from other trustworthy sites. Encourage clients, friends, family members, partners, suppliers, industry mavens and friendly fellow bloggers to link to your site. The more incoming links you have the higher your site will rank. But beware SEO snake oil salesmen who try to trick Google with spammy links from low-reputation sites. Some links can actually damage your SEO.
If your site gets most of its traffic from Paid Search, you should ask yourself the same kinds of questions. Is this because you have decided to use aggressive advertising to give your business a nice big push? Is the paid search bringing in plenty of sales for your healthy website? If so, that’s great; this strategy can be seen with some large successful companies. If it’s because you are unsuccessful with organic search so you’re doing paid search instead, you’d probably get a good return on investment if you optimize your website. Typically, the Paid Search results stay about the same, but the Organic Search increases and so do sales.