Relevancy is the first qualifier of a quality link opportunity. The next qualifying factor is the authority of the opportunity. Since Google doesn’t update PageRank (PR) anymore, you must rely on third party metrics. I recommend you use Domain Authority (DA) from Open Site Explorer, Domain Rate (DR) from Ahrefs, or Trust Flow from Majestic to determine the quality of your link opportunities. You should use all three tools if you can.
Yahoo!'s Pay-Per-Plick (PPC) Program shows paid ads at the top and right of the results pages. websites that show up here bid on keyword phrases and pay Yahoo!® a small fee each time the ad is clicked on. The more you bid per phrase the higher your ad will appear on the results page. Yahoo! PPC is a great way to help drive traffic quickly to your website. You can set a daily budget. When you max out your budget, Yahoo! will pull your ad for the remainder of the day.

Brian, I’ve drunk your Kool aid! Thank you for honesty and transparency – it really gives me hope. Quick question: I am beyond passionate about a niche (UFOs, extraterrestrials, free energy) and know in my bones that an authority site is a long term opportunity. The problem today is that not many products are attached to this niche and so it becomes a subscriber / info product play. However, after 25+ years as an entrepreneur with a financial background and marketing MBA, am I Internet naive to believe that my passion and creativity will win profitability in the end? The target audience is highly passionate too. Feedback?

Spider-driven search engines such as Google®, Yahoo!® and MSN® use "robots" or "crawlers" to score websites across the Internet. Robots "spider/crawl" each site and "score" pages based on how relevant they are. A website's score or placement within a spider driven search engine is derived from hundreds of variables such as link popularity, density and frequency of keywords in page content, HTML code, site themes and more. You will want to focus many criteria in your SEO strategy to position yourself well among the major search engines. Here are two of the most influential factors:
If you are using Responsive Web Design, use meta name="viewport" tag to tell the browser how to adjust the content. If you use Dynamic Serving, use the Vary HTTP header to signal your changes depending on the user-agent. If you are using separate URLs, signal the relationship between two URLs by tag with rel="canonical" and rel="alternate" elements.