Sometimes it's better to don't follow the trend! -SandyLet's take an example. Since this post is being written, internet marketing with Facebook (Fb ads and Fan pages) is booming right now. Then guess what?! Facebook is become tougher, they changed, and all of them impact marketers! There are more than 10 Facebook changes these days (probably more!).
This is also happened with SEO a while back.
So, take lessons from this.