Question
What is the best source for information on your industry, competitors and others?
Is there anything that is not present in the market that is important for you as a professional for the decision making process?
Answer
While there are many companies to utilize to gather important market indicators of an industry, competitor, etc.
What should drive your decisions is the value of your data and is it within the realm of possibility of the company or service you are using to attain this data. Depending on the industry.