You can confer some of your site's reputation to another site when your site links to it. Sometimes users can take advantage of this by adding links to their own site in your comment sections or message boards. Or sometimes you might mention a site in a negative way and don't want to confer any of your reputation upon it. For example, imagine that you're writing a blog post on the topic of comment spamming and you want to call out a site that recently comment spammed your blog. You want to warn others of the site, so you include the link to it in your content; however, you certainly don't want to give the site some of your reputation from your link. This would be a good time to use nofollow.
#16 is interesting because no one really knows about it. Myself and a former colleagu did a test on it about 4 years ago and published our results which conculded what you are saying. Since then I’ve been careful to follow this rule. The only issue is that often times using the exact kw does not “work” for navigation anchor texts. But with a little CSS trickery one can get the code for the nav bar to be lower in the code, prioritizing contextual links. I’ve also seen sites add links to 3-5 specific and important internal pages with keyword rich anchor texts, at the very top of the page in order to get those important internal links to be indexed first.
You can also add the campaign name here such as facebook_offer or summer_sale or new_product_lineup or anything else for that matter. Be sure to separate the spaces with underscores. And, if you're placing ads on Google, YouTube or any other platform, and you're bidding for keywords, place the campaign terms in there, separated by plus signs such as best+running+shoes or best+mens+polo+shirts or anything else for that matter.
For some reason I had to delete some pages, these pages are using the HTML suffix, so I blocked them in robots.txt use Disallow: /*.html, but it’s been almost a year, I found that google robot often capture these pages, How can I quickly let Google completely remove these pages? And I have removed these URL from google webmaster tool by google index-> remove URLs, but Google still capture these pages.

Stickers are essentially mini-posters, and advertisers have been using them for decades to get the word out without technically breaking the law. They hand them out to teams who then go out and plaster them over public buildings, bus stops and street signs. When the authorities complain, they say “oh, we only gave them to our customers. We have no control over where they put them.”

On October 17, 2002, SearchKing filed suit in the United States District Court, Western District of Oklahoma, against the search engine Google. SearchKing's claim was that Google's tactics to prevent spamdexing constituted a tortious interference with contractual relations. On May 27, 2003, the court granted Google's motion to dismiss the complaint because SearchKing "failed to state a claim upon which relief may be granted."[68][69]
This information hits the mark. “If you want your content to go viral, write content that influencers in your niche will want to share.” I love the information about share triggers too. I’m wondering, though, if you could share your insights on how influencers manage to build such vast followings. At some point, they had to start without the support of other influencers. It would seem that they found a way to take their passion directly to a “ready” world. Excellent insights. Thanks for sharing.
Getting free website traffic may not cost you monetarily, but it will require effort on your part. However, the effort you put in will equate to the quality of the traffic you generate. As mentioned above, there is no point in getting more traffic to your website if those visitors are not likely to engage with your pages, convert into leads, or become customers.
Guest blogging is a two-way street. In addition to posting content to other blogs, invite people in your niche to blog on your own site. They’re likely to share and link to their guest article, which could bring new readers to your site. Just be sure that you only post high-quality, original content without spammy links, because Google is cracking way down on low-quality guest blogging.
Holy Engagement! This was an awesome post, full of great info… and then I realized that 3/4 of the actual page was comments… which is even better for shares, SEO and overall engagement. I was lucky enough to attend an event where Neil Patel was giving some great blogging training and a lot of what you covered was there. The simple fact that you comment back is awesome.

YouTube is a great resource for driving free organic traffic to your website. Maybe it's because Google loves YouTube, and considering that it's the second most popular search engine in the world, gaining exposure on YouTube could be huge. Create useful tutorials and videos that add an immense amount of value and be sure to link to your content through the description.