A Link Farm is a set of web pages created with the sole aim of linking to a target page, in an attempt to improve that page's search engine ranking. Get rid of these!
By cleaning up your duplicate listings and following best practices you can gain greater control over what listings rank and how.
Control which listing Google shows in the local business listing “3-pack”.
Full description of how to find and manage your duplicate business listings in Google Local Search.
Google is finally getting on board with in-SERP video advertising.
Google announce that mobile traffic finally overtook desktop traffic in 10 different countries.
The “Mobilegeddon” algorithm update to phase out sites not optimised for mobile.
Make sure your business information is easily accessible to assistants like Siri for Apple users and Cortana for microsoft users, rather than trying to funnel people to your site specifically.
Keep in mind the benchmarks of quality and customisation for content strategies in 2016.