From this aspect, long copy is more useful than short content. Research suggests a content copy of 2000-2500 is ideal for a higher rank in search engines. Long material allows you to insert more keywords (including long-tail keywords), multiplies the dwell time, and also gives an opportunity to add outbound links. Resultantly, you’ll be able to lift conversion rates.
Good question, for most directories I use they ask for mobile number to send a message of verification, for the ones which phone you for verification inform the company before hand to tell their customer service people to be ready. I know the bigger the company the more tricky these things get you just have to find out what works best to answer the calls even if they give you a direct number to use. 
Organic traffic, on the other hand, are those visits which are tracked by another entity — usually because they have arrived through search engines — but also from other sources. Hubspot’s definition emphasizes the term “non-paid visits,” because paid search ads are considered a category of their own. But this is where the lines between direct and organic start to get little blurry.
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.
Good point,The thing with this client is they wanted to mitigate the risk of removing a large number of links so high quality link building was moved in early before keyword research. So it is on a case by case basis, but defiantly a good point for most new clients I work with who do not have pre-existing issues you want to do Keyword Research very early in the process. 
Beyond organic and direct traffic, you must understand the difference between all of your traffic sources and how traffic is classified. Most web analytics platforms, like Google Analytics, utilize an algorithm and flow chart based on the referring website or parameters set within the URL that determine the source of traffic. Here is a breakdown of all sources:
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