Which one do you think is the most popular?
Well I believed in these -
Starting a website on an expired domain is better - Many times I purchased an old domain and found it was banned in GWT

Two of my sites didnt do well even though the domains were 8 to 10 yrs old.
Using 301 redirects for SEO still works - I thought they still work.
Hosting Location is important
Schema Markup is a Ranking Factor
H1 tags are a crucial element for SEO
Meta tags will boost your rankings
An XML Sitemap Will Boost Your Rankings
Linking out (such as to Google.com) helps rankings - I believe linkin to authority sites helps
You should update your content X times a month
Link location in content doesn't matter
Infographics are gone - didnt know about Guestographics
Bolded keywords affect rankings:
Social Media Signals Impact Directly Search Rakings
Social Signals Create Backlinks
New sites do not rank well because of the “Google sandbox”
The higher your bounce rate, the lower your rankings:
Cloaking still works
Disavow Tool doesn't Work
Paying For Google AdWords = Higher Organic Rankings
Google spies on webmasters using Google Analytics