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.
Everyone wants to rank for those broad two or three word key phrases because they tend to have high search volumes. The problem with these broad key phrases is they are highly competitive. So competitive that you may not stand a chance of ranking for them unless you devote months of your time to it. Instead of spending your time going after something that may not even be attainable, go after the low-hanging fruit of long-tail key phrases.

Hi Brankica, wow what an extensive list. As a one-month old blogger this list is overwhelming so there were four things I have noted and will look into further are stumbleupon, digg, roundups and vark. I hope to implement them soon and will keep track of the results. As for the other sources, I will come back to this post to see what other sources to use next. I am curious to know from your experience, what are the Top 10 most effective traffic sources?
The truth is that a major problem for search engines is to determine the original source of content that is available on multiple URLs. Therefore, if you are having the same content on http as well as https you will “confuse” the search engine which will punish you and you will suffer a traffic loss. This is why it’s highly important to use rel=canonical tags. What exactly is this?
The amount of dark social that comprises one's direct traffic is going to vary. For example, you might be diligent about incorporating tracking tokens into your email marketing campaigns, and asking your co-marketing partners to do the same when they promote your site content. Great. You won't have a huge chunk of traffic dumped into direct traffic that should really go into email campaigns. On the other hand, perhaps you're embroiled in a viral video firestorm, and a video on your site gets forwarded around to thousands of inboxes ... you don't exactly have control over that kind of exposure, and as a result you'll be seeing a lot of traffic without referral data in the URL that, consequently, gets bucketed under direct traffic. See what I mean? It depends.
This was awesome! Holy moly! THIS type of post is definitely worth bookmarking and coming back to :) Number 51? Find Brankica and hire her for free to be your publicist!! :P LOL. You really covered pretty much all of the main traffic methods, I can't really think of much of anything else! Hmmm... maybe email list building? Like partnering up with someone else who has a list and swapping opt-in ads? Lots of people do that to get more subscribers! So, that could be another traffic method as well. :) GREAT POST! I'll try to remember to tweet this one a few times this week!
Absolutely nothing (other than the scale of the challenge). Google doesn’t care whether you’re a startup, a major financial institution or the smallest online retailer – all it cares about is connecting people with the most relevant content for each search query. The SEO requirements for a startup are exactly the same as the world’s biggest brands and search engines want to see the same things from you as any other kind of business.

Hey Brankica, Wow, what an amazing post, packed with incredible sources of traffic. No more excuses if there are so many places to tap into to generate traffic. This is definitely the most popular post in the contest. Well done, girl! :) Thanks for sharing your insights. I have picked up a few sources that I haven't used before. All the best, Mavis
In the end of the day it depends on the size of the website you are working with and how well known the brand is in the market. You can adapt some of the strategies listed above in the post on scale and it can have a highly positive impact on a web property, the property in question is a real content house so any thing is possible. What else do you suggest we should do I will advise you if it has been done already?
No one wants to work harder than they have to – and why should they? Why pour five hours into Plan A when Plan B takes half the time and can be twice as effective? While that might seem like common sense, many companies waste a lot of time churning out new website content, when they should be revamping their existing blog posts and landing pages instead in order to increase organic traffic.

In most cases, the largest amount of traffic to your site will be comprised of direct and organic traffic. If you have a partnership with an industry association or manufacturer, you may see referral traffic from their website. If you decide to do paid advertising such as pay-per-click marketing, you might see traffic coming in from ad campaigns as well.
For our client: We rolled out numerous new pieces of content onto their blog and news section; we aimed to make the content creative and funny. As the client was in the careers space we made use of “funny interview questions” and “technical interview questions” style articles. It was amazing that one of the articles even made it to the first page of Reddit. We also pushed out content which was related to various holidays in that year and also specific to the client’s industry and also current trends in the market. 

A great way to break your web traffic without even noticing is through robots.txt. Indeed, the robots.txt file has long been debated among webmasters and it can be a strong tool when it is well written. Yet, the same robots.txt can really be a tool you can shoot yourself in the foot with. We’ve written an in-depth article on the critical mistakes that can ruin your traffic in another post. 
To give you an idea of just how much money is being spent on paid search, take a look at Google. Google's AdWords program is the most used pay-per-click (PPC) advertising program available today. While the tech giant owns YouTube and Android, among hundreds of other profitable brands, AdWords accounts for roughly 70% of their revenue -- which speaks wonders for its effectiveness.
You might remember “Face Off” , a movie from ‘97 where Nicolas Cage is a terrorist and John Travolta is an FBI agent. And, as it happens in movies, they became obsessed with one another. Travolta needs information from Cage’s brother, so he undergoes an operation in which he gets Cage’s face; a few plot twists later and Cage has Travolta’s. They continue to pursue each other with new identities, the bad guy the good guy, the good guy the bad guy and so on and (almost) no one knew who is who. Dizzy yet?
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.
Fantastic post Tom! There's a lot of confusion on direct traffic to begin with. These are even more finer nuances that you have explained. I have a client whose top source of traffic is direct, and part of it is maybe due to the fact that they don't do any promotion, and it's mostly shared around internally within their team. But I just noticed that their URL is http and not https so this might be something for me to take back to the team. Thanks!
Love the five different area of investigation that you went over, great way to analyze and diagnosis the issue. I would also definitely agree doing a rankings comparison between the two time frames, and not only check what your Google ranking is, but also track the search volume for your keywords to see if it has fluctuated or gone down. Google Trends is a great tool for this as well, as one of your keywords that your ranking for may have just lost popularity online.
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.