You’re certainly right about most business’ search for a shortcut. Unfortunately there really isn’t one (I say unfortunately because if I knew one I’d be loaded).

I don’t know if there’s too much information though – information isn’t in itself a bad thing provided you know (a) what’s reliable and unreliable info (b) as you said, how to apply it to your own situation

There isn’t a lack of information. There’s too much. The problem is that people need to spend time figuring out which marketing tool to use for their specific situation, and how to apply some creativity to ensure they stand out (or are in front of) their target market.