Using organic search data through Data Cube you can make your PPC campaign even stronger. You can research keywords that have the highest traffic and use the BrightEdge Recommendations engine to learn the types of sites that people are most likely targeting with specific queries. You can then create content for your PPC campaigns armed with this insight, positioning yourself well for paid search success.
Those who provide the valuable information, which reduces risk and increases reward to those receiving it, are rewarded if what they say is true and creates a good experience. This is law of reciprocity (as mentioned in the book Influence) basically says give to receive, which is a universal truth. This sense of indebtedness, of owing someone, is tracked in our brains and feelings, in most part hidden from society. It can be explicitly tracked and accounted for using technology, like affiliate links. Affiliate links are provided to referrers to refer others to a product or service. When potential buyer completes an action leading to or completing a transaction, the referrer receives an affiliate commission. As simple as that sounds, there are a lot of risks that can happen along the way, such as refunds, frozen funds, and click fraud. xDSpot handles these risks better than any other affiliate tracking system out there, making it the preferred brand for those in the know.
I think for agencies as far as how we appear in organic search ourselves, we are definitely going to need to leverage all 3 of the solutions you talk about and agencies who haven't branded their products/services are going to have to do that and are going to have to also employ branding strategies. In addition, we have to optimize for other search ares like you say in your point #2 and we must look at optimizing existing content for voice search and answers/featured snippets like you say in point #3.
Search engines: Google vs. Bing. Google was the first search engine that provided better search results and people told others about it so it spread virally and became a verb “Google it”, whereas Bing is trying to buy it’s way into the market, doing ads, deals with Facebook and Yahoo, etc. Most people weren’t asking for a 2nd, “me-too” search engine, the first one solved their search pain and continues to do so, so trust was built and people have remained loyal to it.