The most reliable way to increase search engine traffic is to create great content that your audience is looking for. For example, if you’re a pest control company, you may write a bunch of quality blog posts on getting rid of pests. The idea is to educate your prospects and move them towards buying from you. This is exactly where SEO intersects with content marketing.
Google is moving into more and more aggressively commercial spaces, like jobs, flights, products, all of these kinds of searches where previously there was opportunity and now there's a lot less. If you're Expedia or you're Travelocity or you're Hotels.com or you're Cheapflights and you see what's going on with flight and hotel searches in particular, Google is essentially saying, "No, no, no. Don't worry about clicking anything else. We've got the answers for you right here."
Hey Ashok! Good question. I work with clients in a lot of different industries, so the tactics I employ are often quite different depending on the client. In general though, creating killer resources around popular topics, or tools related to client services. This provides a ton of outreach opportunity. For example: We had a client build a tool that allowed webmasters to quickly run SSL scans on their sites and identofy non-secure resources. We reached out to people writing about SSLs, Https migration etc and pitched it as a value-add. We built ~50 links to that tool in 45 days. Not a massive total, but they were pretty much all DR 40+.
Additionally, there are many situations where PPC (a component of SEM) makes more sense than SEO. For example, if you are first launching a site and you want immediate visibility, it is a good idea to create a PPC campaign because it takes less time than SEO, but it would be unwise to strictly work with PPC and not even touch search engine optimization.
Google's search engine marketing is one of the western world's marketing leaders, while its search engine marketing is its biggest source of profit. Google's search engine providers are clearly ahead of the Yahoo and Bing network. The display of unknown search results is free, while advertisers are willing to pay for each click of the ad in the sponsored search results.
Now, it is not that these sites are not interested in Google users. In fact, they have hired us to help them increase their share. However, they are getting so much traffic from sites like Facebook that it seems there is less urgency about attracting this traffic and less willingness to change the site to meet organic standards. Not long ago, sites would urgently and unquestioningly abide by Google’s standards to court that traffic.