This is what Google calls 'Strings to Things' - an attempt to move beyond just understanding the characters you are typing into its search engine, and get to a better comprehension of what it is

Google’s goal for the penalty is to give sites that have produced great content a better chance to rank and drive organic search traffic and conversions.” Matt Cutts –Head of Web Spam at Google.

Recent YouGov research has revealed that just 18% of SMEs using Google Adwords actually recoup their investment . Here is some useful advice on how to be part of that 18%        

However research shows that maintaining an updated LinkedIn profile is important

Google are aiming to provide more relevant results by incorporating technology called "semantic search," which refers to the process of understanding the actual meaning of words.

(Article from Econsultancy) The drop was driven by a decrease in spending among financial, insurance and local service advertisers. Display investments also decreased 5.9% in Q4, largely thanks to smaller budgets from automotive companies, telecom providers and travel