Hi , the post is really nice , and it made me think if our current strategy is ok or not , 2 things are important " High quality content strategy " and " Good quality Links " now joining those correctly can pose some real challenges , say if we have n no of content writers who are writing for couple of websites, to be generic let’s consider , 1 writer @ 1 website . We have to write make a content strategy for in-house blog of the website to drive authentic traffic on it and a separate content strategy for grabbing  links from some authentic High PR website i.e. CS should be 2 ways , In-house / Outhouse .

The first is that it’s caused almost exclusively by users typing an address into their browser (or clicking on a bookmark). The second is that it’s a Bad Thing, not because it has any overt negative impact on your site’s performance, but rather because it’s somehow immune to further analysis. The prevailing attitude amongst digital marketers is that direct traffic is an unavoidable inconvenience; as a result, discussion of direct is typically limited to ways of attributing it to other channels, or side-stepping the issues associated with it.
Secure (https) to non-secure sites (http): Since Google began emphasizing the importance of having a secure site, more websites are securely hosted, as indicated by the “https” in their URLs. Per the security protocol, however, any traffic going from a secure site to a non-secure site will not pass referral information. For this issue, you can correct by updating your site to be secure through a third-party SSL certificate.
Hey Patricia, glad you liked the post and found more things to do... Like you are not overwhelmed with stuff lately anyway, lol. Please, don't try all at once. One traffic source every few days. For two reasons: not to get overwhelmed and to be able to track some results. I think if a blogger would master only 3 to 5 of these sources, it would bring incredible amounts of traffic. By master I mean just that - be a master, not just do it in some spare time ;)
For the short-term, PPC is generally your best bet. The minute your ad runs, it delivers results. But when the budget stops, so do the benefits. Because SEO relies on your website’s content, linking structure, and meta data, developing a thorough strategy that delivers real results takes more time than setting up a PPC campaign. However, SEO’s results may be more valuable to you and your organization in the long run.
If you check out some of the suggestions below this though, you're likely to find some opportunities. You can also plug in a few variations of the question to find some search volume; for example, I could search for "cup of java" instead of "what is the meaning of a cup of java" and I'll get a number of keyword opportunities that I can align to the question.

Another tip you can use is just reach out to the prior agency and say something like the following: “We realise you were using link networks for our website which has resulted in a Google penalty and loss in business. Can you please remove my website from any link network you have built?”. If the prior agency is decent, they will remove the links from the network.
This, of course, if you do care about your organic traffic and your overall inbound marketing strategy and you don’t want to make a mess out of them. The truth is that Google has so many rules and algorithms for scoring a website and that the SERP is so volatile that it’s nearly impossible to predict which site will have the best organic traffic and from what exact reasons.
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.
Traffic data is a great way to take the temperature of your website and marketing initiatives. When you are writing and promoting blog content on a regular basis, you can use traffic data to track results and correlate these efforts to actual ROI. Be sure to look at traffic numbers over long-term intervals to see trends and report on improvement over time.