Judging from the results of my survey every business should be on Facebook. It is by far the largest social network. So why do I continue to stay away from Facebook except for personal use? I just don't think that it is the correct venue. Selling software on Facebook would be a little like selling software at the dog park. The decision makers may all be there, but the atmosphere just is not right.
Not a single respondent named Facebook as a source of tech news, while both Twitter and LinkedIn were. This reflects my own view that business conversations take place on Twitter and LinkedIn, not Facebook.
If you are a politician, celebrity, or non-profit, you do need to be on Facebook. People like to discuss and promote their favorite causes on Facebook. The Ladybird Johnson Wildflower Center is a great example of the effective use of Facebook by a non-profit. Gorgeous pictures of wildflowers help promote the use of native species of plants.
The other problem with Facebook is that they want you to pay for access to your subscribers. It is not enough that users subscribe to your feed, Facebook has a weird algorithm that determines what users actually see. In order to get past that algorithm, you have to pay. That might be worth it for a non-profit or politician, but not a technology company. You are better off using Twitter and LinkedIn to push out content.