Although it may have changed slightly since BrightEdge published its report last year, the data still seem to hold true. Organic is simply better for delivering relevant traffic. The only channel that performs better in some capacities is paid search ads, but that is only for conversions, not overall traffic delivery (Paid Search only accounted for 10 percent of overall total traffic).
I feel that an article is only good if it adds value to the reader, and this one qualifies as a great article because it has shown me quite a few new ways in which to generate traffic to my blogs. I would like to tell you that I had read your suggestions about using flickr images on blog for traffic generation some other place as well and I have religiously followed that on my blog and today at least 15% of the traffic to my site comes from there! I am therefore going to follow the other suggestions as well (the ones that I am not following now) and hope to take my blog from Alexa 500K to sub 100K in the next couple of month!

If you want to know how engaging your content is, you might look at bounce rates, average time on page and the number of pages visited per session to get an idea – and Google can do precisely the same. If a user clicks through to your site, quickly returns to the results page and clicks on another listing (called “pogo-sticking”), it suggests you haven’t provided what this person is looking for.
On the basis of this article alone, you should be given a Ph.D in internet traffic generation. Absolutely fantastic set of ideas & sources for traffic generation. I had taken a print of this article the first I read it and then took some serious action of some of the ideas that have mentioned here - flickr images, blog commenting, slideshare (this even resulted in some great business leads and closures), sites such as blog engage, blog interact, social media sources such as LinkedIn, forum participation etc. And they have done wonders to my sites. The fact that there are 319 comments here even as I write is testimony to the authenticity of the ideas presented here. Great article which will one day be a classic - if it is not already.
Have you conisidered traffic exchanges, or blog exchanges. After submitting your URL and signing up to about 10 exchanges, it takes about an hour clicking through all 10 surf sights at a time. But it does give you some good traffic. I reciently started doing it and I am now getting around 200 visitors a day. That is just from traffic exchanges. not bad from just one type of traffic source
Direct traffic is defined as visits with no referring website. When a visitor follows a link from one website to another, the site of origin is considered the referrer. These sites can be search engines, social media, blogs, or other websites that have links to other websites. Direct traffic categorizes visits that do not come from a referring URL.