Direct mail is a technique that worked well before the Internet.

It more a marketing technique used by those that are successful. 

One marketing technique is not the end all be all to everything.

The reality is, you can make educated guesses about who is likely to be distressed, and therefore should have a higher likelihood of being motivated, but at the end of the day, it's still a guess.Many of us stay in business by applying effective marketing techniques to those educated guesses.

I will research these techniques more and implement immediately.

Not just on the marketing itself but on the R&D of marketing techniques and methods.OK this is fact.Then WHY...

The ONLY way to do SEO with results is to completely bypass Google, staying a few steps ahead of Google, understand the point of SEO and apply techniques using your own logic.It will be hard to compete with me when I develop my own SEO strategies while everyone else is waiting for Google to tell them what to do next.Keep in mind, once ranking #1, and having a credible site, do you realize you are free.

Really seems like a “win-win” technique ( not saying others aren’t).

Only meanings definitions and techniques. 

and also what marketing technique would you say has been most effective for generation leads BESIDES REFERRALS?